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.
KDE devs have been quietly working on Plasma Keyboard, a new on-screen keyboard for desktop and mobile part of the “We Care About Your Input” KDE Goals initiative. Although not ready for texting yet, it has been making progress. Hopefully it'll be in a screen near you soon. Join the effort!
https://invent.kde.org/plasma/plasma-keyboard
Then you use different applications than I. For me X alone only works sometimes. It's not like I made the shortcut up. It's literally what Valve is documenting:
Do you start some desktop apps through Steam? Then they would get different input mapping.
You can change the key mapping for desktop mode in Steam desktop in the settings. Maybe something's changed for you.
The Steam+* glyphs are always available when Steam is running. Mainly so that you can use them in games.