I don't think #Plasma6 is ready for prime time. When I open apps, the title bar goes above the screen space and I can't move or close the app or use the menus.
As a workaround, in plasma you can move a window by grabbing anywhere with the mouse if you just hold super or alt first - depending on how you have it configured. Same for resizing using the right mouse button. I never rely on borders or title bars for these things.
That does move the window around, but resizing the window with the mouse does not work. So, I can move the window around, but I can't resize the window so it is between the panel bars.
When I open apps, the title bar goes above the screen space and I can't move or close the app or use the menus.
Please report the bug.
Is there a way to revert back to Plasma 5.27?
Yes. There is, but it depends on the distro and can be time consuming.
For example with Arch Linux read Downgrading packages and consider tools like downgrade.
Or disable the -testing repos and reinstall the offending packages. It's in extra-testing and kde-unstable, with the latter being 2 revisions newer than extra-testing. So clearly they're fixing some issues.
Oh boy! Please don't tell me it's not usable. There is no way around it when running Arch and it's derivatives. 😂
I don't know how long I can hold off on updating.
Under Arch it hasn't dropped to Stable yet, so unless you are running the testing branch, you won't have to worry. I think it took 5.27 two weeks or so to get to the stable branch after its "release," so you are probably looking at early to mid March. By then, we should also have Plasma 6.1 drop, ie, updates.
It is not making my day very good, that is for sure. Perhaps there is a way to run it under X11 still and that might help for me, I have an older machine.