Normally... such guides are reasonably safe. Third Party PPA's are, as well.
But Zorin OS uses its own repositories with dependencies and this is likely true for other Ubuntu-Based distros, as well.
In adding the repo, it adds packages that are different than the dependencies for Zorin OS.
Gnome4+ is meant for the latest releases and trying to install it on previous releases must run into glib and gcc dependencies. I really do not see how they couldn't... unless that repository specifically accounted for each of these dependencies and included that in the debian files-which it appears it has not.
That is a perfectly reasonable option to try. Don't forget your DNS.
@Aravisian yesterday I recovered my system at my previous stag
but now Zorin itself share updates and I am confused now if suppose I upgrade it and restart then maybe I face consequences again & i don't wanna see again a boot terminal screen
W: Possible missing firmware /lib/firmware/amdgpu/yellow_carp_gpu_info.bin for module amdgpu
W: Possible missing firmware /lib/firmware/amdgpu/vangogh_gpu_info.bin for module amdgpu
W: Possible missing firmware /lib/firmware/amdgpu/cyan_skillfish_rlc.bin for module amdgpu
W: Possible missing firmware /lib/firmware/amdgpu/sienna_cichlid_mes.bin for module amdgpu
W: Possible missing firmware /lib/firmware/amdgpu/navi10_mes.bin for module amdgpu
these are majors which is missing firmware
"I run again
sudo apt-get dist-upgrade
then in response which showed that all packages are updated"
So what I suppose to do
The "Possible Missing Firmware" message is a rather simplified warning message that often means that there is a "placeholder" you could call it... noting possible future additions to the kernel.
That Possible Missing Firmware message can be safely ignored the majority of the time. And I have had them disappear upon the next kernel upgrade.
I prefer to just install the firmware (Which you can follow how-to in the links posted above) just because I am finicky.