I just updated my machine from Fedora 39 to Fedora 40, and with it I got Plasma 6. I’m having a very bizzare issue I wasn’t having before though. With my display set to 150% scale, there’s a line of pixels on the right and bottom of the screen that aren’t getting properly wiped, and stuff is getting stuck there. Not everything does, but most notably are the little bouncy icons when an app opens and the blue glow that appears when your cursor is near a hidden panel. See the attached gif to see what I mean. This doesn’t happen on any other scale, only 150%, but I’d really like to use that scale as it is what looks best on my machine. The display has a resolution of 2560x1600 if that matters. Also, I don’t know if this is related, but before I upgraded some games defaulted to a resolution of 2561x1601 for some reason, but they don’t anymore. Not sure if that’s significant.
I’d appreciate some help, or if there’s not a fix on my end I will file a bug report.