I am not against fedora pushing things and fedora helping in testing things it is its job as a test bed. Fedora does not give any fallback to people affected that is the issue. Again I do not use fedora now so that is not my issue what they do.
The plasma devs likely don’t have a graphics tablet to test on, so they rely on the community to find these issues and test the fixes.
Some of these things were communicated in 2019 (phabricator.kde.org/T11660) and again during artist and plasma developer meeting too. You can read about it here (phabricator.kde.org/T14971) So fedora is not the only medium by which bugs and requirement are conveyed to developers.