I just download Zorin Like Yesterday Really Loving It But I Cant set a different wallpaper for my lockscreen I wonder why do I need a pro version to set wallpaper on lock screen or something else
Lite or core? Gnome tweeks has an extension that deals with this. With lite, you will have to go with another application... forget the name off the top of my head.
Try searching "how to change login wallpaper Ubuntu 20 (for core) xubuntu 20 (for lite)'.
On Lite, a user can easily set the login wallpaper.
sudo apt install lightdm-gtk-greeter-settings
Launch the LightDm Greeter Settings app from the app menu.
In the Appearance tab under Background, set the desired wallpaper for the Loginscreen.
I have the core version
You can refer to 337harvey's post above, doing so I came across
You can try the suggestions(The extension is mentioned a bit further down)