uncheck “draw window contents while dragging”, that will make it only draw an outline until you release the drag

It already does that.

what monitor you have, but it may also be related to the monitor not supporting the same dpi or colorspace as the built in does

I mean that would make sense if it wasn’t intermittent. It’s also not a problem I have with any other OS.

I don’t know what you mean when you say “switch screens.” Like in Mission Control or switching workspaces?

Like I’m working on one screen and then switch to the other.

Option command d toggles the dock

I don’t want to use a keyboard shortcut, I just want it to work correctly the way it does in GNOME.

Thank you.