I searched the forum and the net but I couldn’t find anything. I’m on Manjaro 24.0.2 stable branch. On LXQT 2.0 with KWin_x11 I’m encoutering a strange behaviour. The application switcher is not working when I press ALT-TAB. When I open KDE system settings I see the Short Cuts are not activated. When I activate Alt-Tab it is still not working. When I re-enter KDE System Settings I find the keyboard shortcut empty again. It seems the settings are not saved.
Btw. when I log in to a KDE Plasma wayland session everything is working fine.
Manjaro is generally suited to using only the DE installed with the distribution; the settings you mention may be specific to a DE. Having LXQt also installed may require that these settings be configured only with the appropriate (DE-specific) method(s), for each environment.
Using LXQT with KWin it is forseen to use KDE System Settings to maintain certain Window Manager related settings. I have a 2nd Laptop with Lubuntu (LXQT 1.4) installed, there everything is working flawless.
Currently I don’t even know if the issue is related to LXQT 2.0 itself, missing access rights on the LXQT instance or maybe some missing build parameters in manjaro…