I’m curious as to why you don’t want to see cm0002’s posts

Apple stopped pushing security updates for my MacBook.
Now I can never use anything but Linux.

From what I can see online the key is actually called the super key, but for some reason KDE Plasma calls it Meta on my device
Might be because I’m on a MacBook

KDE turns on do not disturb mode when a program is in full screen mode by default.

You can test this by binding DnD to a button (preferable Meta key + unused letter like F), opening a program in full screen mode and toggling DnD.

This feature can be disabled in settings.

I know my answer is not what you’re looking for but the other two comments should suffice so

Consider IPv6 if possible