Whenever I lock the screen on Plasma Wayland, I can't use the virtual keyboard to unlock the screen. This has happened to me on EndeavourOS and Arch. I'm on Plasma 5.27.2, this used to happen on older versions of Plasma as well. My “neofetch” output in the video attachment.
Created attachment 157193 [details] “neofetch” output and demonstration
There were a few issues with this button that are fixed for touch users with the fixes for Bug 466969 that will be released tomorrow with Plasma 5.26.3. However there's still an issue when you *click* the button. KWin receives the signal to show the virtual keyboard, but ignores it because the input event associated with it wasn't a touch event. We'll probably need a way to communicate to KWin that we want to force it to show anyway with no event filtering.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/2782
On Wayland, the virtual keyboard still refuses to appear on lock screen when I click on its button by mouse. The one on SDDM works fine. Operating System: Manjaro Linux KDE Plasma Version: 5.27.6 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.4.7-1-MANJARO (64-bit) Graphics Platform: Wayland
Yes, because those patches I submitted haven't been merged yet.