I am running ZorinOS 16.2 Core with AMD 2400G (Vega 11) APU.
When I run certain applications like Slack or Newsflash with web content, I get graphical corruption in many menu items. The distortion seems to be related to other running applications - in the case of this screenshot, the Steam client is bleeding through.
In NewsFlash-GTK (RSS reader) I can see the Hamburger menu (ala Android) correctly, but clicking my RSS aggregation provider, I get a bunch of garbled visuals - and if I right click I get what you see in the attached screenshot - which is similar to what I see in Slack.
The size of the menu is correct, but the contents are distorted beyond readability.
I found a Reddit thread where someone mentioned having a similar issue on AMD hardware, but that person solved it by uninstalling nvidia drivers. I, however, seem to have no nvidia drivers to uninstall at all, so I am uncertain of what to try next. I get the same issues in Slack regardless of whether I use the Flatpak or the Snap version.