I had this same issue, as others have stated it seems to be related to higher refresh rates, as the highest I can go without this issue is 99.95Hz.
Operating System: Fedora Linux 41
KDE Plasma Version: 6.4.0
KDE Frameworks Version: 6.15.0
Qt Version: 6.8.3
Kernel Version: 6.15.3-100.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 7600X 6-Core Processor
Memory: 34 GB of RAM (32.7 GB usable)
Graphics Processor 1: AMD Radeon RX 7800 XT
Graphics Processor 2: AMD Radeon Graphics
Manufacturer: ASRock
Product Name: B650 PG Lightning
Also, no I haven’t updated to Fedora 42 yet because I’m lazy.