You could take a Look in Settings>About for this. Or You open the Terminal and type sudo lshw -c video to get an Output for Your Graphics.
When You are in settings>About, You could look if there stands Wayland or X11. When there stands Wayland, You could try it with switching to X11/Xorg.
To do that, go to the Login Screen (not the Lock Screen). Simply reboot for that. On the Login Screen click on Your Profile so that the Password Field appeared. It has to be appeared. When it is appered, You should see in the bottom right Corner a Gear Icon. Click on it and choose the Option ''Zorin Desktop on Xorg'' and then test if it works.
Because of the initramfs, You could take a Look at this: