KDE does have focus stealing prevention, Have you messed with that at all? https://docs.kde.org/stable5/en/kwin/kcontrol/windowbehaviour/index.html#focus-focusstealing The only thing I can think of is maybe some notification steals the focus and doesnt give it back to the window.

https://xkcd.com/1172/

We have a coffee machine that runs on linux.

The firefox reader mode button doesn’t show up for me on that site. I wonder if its just a poor site or if they are intentionally trying to break it.

I use a pixel from the google store on google fi and had no issues flashing new roms, Cellular worked fine with lineage and graphene on my 6a.

I’m not sure about others but none of my computers support PXE boot over wifi.