First of all, Huge appreciations and thanks to the ZorinOS devs, maintainers, and helpers. I have huge respect to them for this amazing OS.
I have installed ZorinOS on my slow laptop and it works perfectly fine with no issues in there.
Though on my PC, That's also relatively OLD. I have encountered very unusual and weird glitches on specific Apps.
I have faced same issue on Brave Browser that was preinstalled into ZorinOS. and same has happened with Spotify app.
It's really hard to explain my problem. When i launch spotify app, it looks just fine. but when i try to scroll or minimize/maximize it, it creates a weird glitch and then fixes itself 3 seconds later.
Then after any changes like scroll/maximize/minimize, It does the same thing again
however, all the rest of apps like mozilla firefox, system apps or software app doesnt give me that glitch, it works perfectly fine when maximized, minimized etc. Its only certain apps that give me that kind of error, for me it was brave and spotify so far that i have opened.
During installation i had unchecked the option to connect to wifi. But i made sure i updated softwares after installation. So i dont think it might be a driver issue from my side.
However. I want to mention that during installation, During the first phase where the ZorinOS checks the iso file and its integrity, It gave me an error that the "4.deb: OK4.debb.debb is giving error" but i didn't think much about it and went with the flow since ZorinOS installation continued to work instead of giving me an option to abort.