I don't use drawing tablets I'm just here for the cute catgirl.
KDE
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.
Plasma 6 Bugs
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.
I have a Xencelabs pen tablet + their Quick Keys peripheral. I can't seem to find any documentation regarding specific support for it on Linux.
The official driver does nothing for usability under Gnome on Fedora 42. Removing the driver made it work better, but it was still finicky. I've since switched back to KDE Plasma, and the tablet works pretty well out of the box. There's no way to configure the buttons on the tablet, and I don't know what they do, if anything. The pen has 3 buttons but the config only recognizes 2.
I'm hopeful this means better support is coming. It kills my motivation to use it sometimes when functionality hits a snag.
Get in touch with the folks running the "We care about your input" goal at
https://go.kde.org/matrix/#/#kde-input:kde.org
They may be able to advise something.