For context I'm running KDE Neon on an Intel/Nvidia desktop. When KDE 6 first came out there were a lot of weird issues caused by the switch to Wayland like windows having flickering or strange rendering issues, but as the months have gone by almost all the issues I noticed at first have been getting fixed and disappearing, with only occasional new ones popping up.
I wouldn't say 0 issues as I have occasional clipboard issues with XWayland apps or KWin crashing results in loss of work. I also find my HP Anyware PCoIP performance to be slightly downgraded compared to X11.
However, the upsides, such as multi-refresh rate and what feels like smoother performance on my RX 6900 XT (home, Tuxedo OS) and Vega 56 (office, KDE Neon) far outweigh it.
KDE is an international technology team creating user-friendly free and open source software for desktop and portable computing. KDE’s software runs on GNU/Linux, BSD and other operating systems, including Windows.
If you encounter a bug, proceed to https://bugs.kde.org, check whether it has been reported.
If it hasn't, report it yourself.
PLEASE THINK CAREFULLY BEFORE POSTING HERE.
Developers do not look for reports on social media, so they will not see it and all it does is clutter up the feed.