I gave this a small attempt and I’d say it was inconclusive. I used the live USB for maybe 30 minutes or so, and tried to stress it a little bit; I installed a few apps, watched a 4k youtube video while browsing. I did not see any glitches during that time, however, upon returning to my normal install, I noticed that it also took 30-60 minutes for the glitches to start appearing. It seems like they might get worse as usage time increases, though I’m not entirely sure about that yet.
My point is: I didn’t see the glitches in the live usb, but I might not have used it long enough and/or with enough applications for the glitches to start. Unfortunately, since this is the computer I use for work, I don’t have many opportune moments for me to spend a couple hours on a live usb. I’ll try to respond if I’m able to get more time to try it again, assuming suggestions in the forked thread don’t lead me to any solutions.