Calculator
Calendar
Character Types
Clocks
Evolution
ImageMagick
Python (v2.7)
Python (v3.8)
Rygel
Seahorse
VLC Media Player
Is it safe to remove them or there's the risk that somewhere I'll cause missing or blank buttons, dependencies errors, crashes or freezes? Because for example I excluded Additional Drivers from the list as it's a category of Software and Updates so uninstalling it (despite no driver appear there for my laptop) I may have a missing or blank button on Software and Updates window. Another good example is Evolution, which is the default and sole software available in the drop-down menu for the Calendar entry in Settings > Default Applications, I don't know what will happen after uninstalling the sole software available to open the calendar. Feel free to inform me about any of the software on the list.
Removing these would break a large number of things. You would have headaches on a massive level if you removed it.
This is not an image viewer. It can be used as one... But imagemagick is a dependency used by most other image services and performs most its functions in the background.
Removing this is Unsafe and can break updater and other gunpg services. That is Seahorse app.
You may need this for any special characters. While you may not open the app itself, in typing certain special characters, it is used by other apps.
Gnome Clocks is integrated and hardcoded into gnome-shell. Removing it may affect conky or Time and Weather notifications in the Shell, Panel, etc.
I actually use a lot of Imagemagick and Inkscape through the terminal CLI rather than the GUI. Moreso ImageMagick which is mostly CLI. In fact, many of your terminal conversion commands and batch commands for images will be imagemagick CLI.
Not everyone does much with Images, though. So not everyone may notice it missing.
Exactly ..... I was clearing out apps I don't use one day and just deleted it ..... never knew it would be used by other programs as I use XnView MP for my images .....
Should I have installed it through the terminal or is SPM alright .....
Calculator
Calendar
Contacts
Evolution
Rygel
VLC Media Player
Searching more about Rygel I read Rygel is a streaming media server compatible with many DLNA/UPnP clients including the Sony PlayStation, Microsoft Xbox, smart televisions, DLNA speakers and many smartphones. Rygel will automatically transcode media to a format compatible with the client device. If I got it clearly, it should change any media format to one that my laptop/system can handle correctly, right? If so, Zorin OS default Firefox isn't able to access it as when I run games of other platforms on it (for example I tried with some of PlayStation or Nintendo) any audio output is fragmented. But I think it allows the system to detect and show my plugged phones, too. In fact, one day I plugged my phone and I saw Rygel appear on processes list but I think it has some gaps sometimes as I often lose contact with my plugged phone after some seconds or even doesn't get detected after being plugged. But let's not worry about this here, it will be a further post, just in case I'll see those behaviors again multiple times.
Sorry everyone, I noticed I forgot Calendar and Contacts at the beginning, don't know how I could . Probably because I saw they're included on Evolution. Anyway, messages updated to include them.
Current situation:
Calculator listed under system application, so hasn't Remove button
Calendar waiting for advice
Contacts uninstalled
Evolution uninstalled
Rygel waiting for advice
VLC Media Player uninstallation fails
If I remember well, it was installed together with OBS, I installed OBS and then later I saw VLC, too. Looks it has something to do with the unmet dependencies error when attempting VLC uninstallation.
Reading list of packages... Done
Generating dependency tree
Reading status information... Done
The following packages were installed automatically and are no longer required:
adwaita-qt bind9-dnsutils busybox-static command-not-found friendly-recovery
ftp hdparm info iputils-tracepath irqbalance libaribb24-0
libbasicusageenvironment1 libcddb2 libdouble-conversion3 libdvbpsi10
libebml4v5 libgck-1-0:i386 libgcr-base-3-1:i386 libgroupsock8 libixml10
liblivemedia77 libmad0 libmatroska6v5 libopenmpt-modplug1 libpcre2-16-0
libplacebo7 libprotobuf-lite17 libproxy-tools libqt5core5a libqt5dbus5
libqt5gui5 libqt5network5 libqt5svg5 libqt5widgets5 libqt5x11extras5
libresid-builder0c2a libsecret-1-0:i386 libsidplay2 libspatialaudio0
libssh2-1 libudisks2-0:i386 libupnp13 libusageenvironment3 libvlc-bin
libvlc5 libvlccore9 libxcb-xinerama0 libxcb-xinput0 lshw ltrace mtr-tiny
nano python3-commandnotfound python3-gdbm qt5-gtk-platformtheme
qttranslations5-l10n strace tcpdump telnet time vlc-bin vlc-data vlc-l10n
vlc-plugin-base vlc-plugin-notify vlc-plugin-qt vlc-plugin-samba
vlc-plugin-skins2 vlc-plugin-video-output vlc-plugin-video-splitter
vlc-plugin-visualization zorin-os-census zorin-os-overlay
Use "sudo apt autoremove" to remove them.
The following packages will be REMOVED:
vlc
0 updated, 0 installed, 1 to be removed, and 56 not updated.
After this operation, 229 kB of disk space will be freed.
Wow, you have ventured beyond minimalism into dangerous territory.
While the above packages may have alternative replacements (inxi instead of lshw; vim instead of nano) and I cannot say that their removal would definitely break the OS... Many of those autoremoves suggest that you will render many normal and essential components or actions nun-functional.
All this thing of uninstalling a simple program is going too far and risky. And think that it was installed without my consent. By the way, it's just a video player, why it should break my OS if uninstalled? Does uninstallation process remove even some critical dependencies? If so, why I read The following packages were installed automatically and are no longer required if the process won't be safe? Terminal doesn't care much of system safety ? I'd have appreciated a simple Proceeding could break the OS. I feel it's better to leave VLC there then, despite I don't really need it and don't like the fact that it's been installed stealthily, not even a bit.
I have also removed a number of apps that were installed on Zorin with out any consequences ......
HOWEVER
I once deleted Nautilus in it's entirety because I use Nemo and saw no need to have 2 file apps .... well at first I saw no real change but soon after I started having some unsolvable problems in a number of areas .....
Various members on this board spent hours trying to solves these problems some of which could be fixed ..... some couldn't and some I simply ignored .... and so I went for a long time .... months .....
Some how during one of the head scratching sessions I happened to mention to Aravisian when he something to me about doing something on Nautilus I told him I didn't have Nautilus I use Nemo .....
There was a long silence ..... not sure if he had fainted or what but he typed back that Nautilus could not be removed from Zorin as it was connected to all kinds of different stuff not just folders ....
I did a complete wipe of my Zorin drive and made a reinstall of Zorin using a Rescuezilla back-up file that I knew contained the Nautilus app and have never had any of those problems again .....
So please just be careful with which apps you delete and which ones you keep ...... but I'm sure you already know that .....
I would not remove or disable the autoremove functionality. It is far too useful. This would be no different from removing the remove function from apt. You need to have it for when you need it.
Nautilus is integrated into the Zorin Core Desktop if on Core. Do not uninstall it.
Also,
It is true of many D.E.'s that the file manager manages the Desktop.
I hope there's a way to remove only VLC stuff then, excluding the removal of other packages. The fact here is that terminal tells me they are no longer required but then you guys tell me that using sudo apt autoremove for them can cause problems. I'd be glad to uninstall only VLC and keep modules if you say they must be held for the system stability, despite the terminal saying otherwise. However, by what I read after entering sudo apt remove vlc once I enter Y I'll delete only VLC, because to remove packages that were installed alongside VLC I'd have to enter sudo apt autoremove. So I suppose entering Y will uninstall VLC while holding those packages.
Yeah, I'm not going to ask how to remove preinstalled commands, I know that someday they can come in handy. Other additional or optional commands libraries must be downloaded by the user, right? Because sometimes I entered some random commands and each time I was told if I meant a specific command that isn't installed so I was suggested to install it. It's not a problem, just a curiosity . But I won't try no more, just to avoid entering a valid command that devastates my system.
. Probably because I saw they're included on Evolution. Anyway, messages updated to include them.
listed under system application, so hasn't 
? I'd have appreciated a simple 
. But I won't try no more, just to avoid entering a valid command that devastates my system.