SUMMARY
Whenever I (accidentaly) hit meta+TAB, the activity bar appears with only one activity running. This is OK, as I don't use more than 1 activity window.

I don't use activities and even have disabled all shortcuts to activities. So theoretically I would expect NO activity bar to pop up at all.

BUT: it is very difficult to remove this bar. Sometimes, but not always, I can remove the bar pressing meta+esc, sometimes this can be achieved moving the mouse in the activity bar and pressing ESC.

This is a very annoying behaviour.



STEPS TO REPRODUCE
1. press meta-TAB
2. (that's it, as from then on the bar is very difficult to remove)
3. 

OBSERVED RESULT


EXPECTED RESULT
Activity taskbar should auto-hide.
And: if I choose NOT to use activities, this bar shouldn't show at all.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.19.5
(available in About System)
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.14.2

ADDITIONAL INFORMATION