I have been a KDE user a long time ago. The hassles with KDE 4 (bad responsiveness, akonadi and nepomuk eating up all CPU, kmail unable to read its own email archive any more, etc.) made me switch to XFCE and I did not look back for a long time. Now I'm looking for a way to use my Lenovo X1 Yoga in tablet mode, and I read a lot of good things about current KDE.

So I've installed Debian testing now, giving me KDE 5.27. I enabled wayland and installed eekboard. And what should I say ... I'm **REALLY** impressed and excited. I guess I will finally be back to KDE!

The virtual keyboard input by eekboard works nicely so far. Except in firefox (I know it's not a qt program). So what is your recommendation here? Is there a way to make the eekboard on-screen keyboard automatically (or manually) pop up when tapping into a text box in firefox? Should I switch to another virtual keyboard? Should I switch to another browser? (But let me mention that I really need something comparable to the uBlock Origin plugin...)

maybe you should switch to KDE Neon and try here? it's operating on Xorg not Wayland

Thanks for the pointer to KDE Neon. I just downloaded and started "KDE Neon Testing" from an USB drive. Unfortunately, my impression is that there is no tablet-specific functionality activated by default. I don't get a virtual keyboard, neither in qt nor in non-qt-programs. Also, no automatic screen rotation (something which I'm also missing in my Debian instalation). But it is not a surprise to me as apparently, wayland is needed / beneficial for this kind of functionality.