I’ve got one of those crazy-wide screens that I usually use at 5120x1440 and it’s great. However, since I work remote, I often want to share my screen with someone on a typical 16:9 screen and the options of “tab”, “window” or “entire screen” aren’t particularly useful.

I’d like to be able share either (a) a portion of the screen (half?) or (b) change my resolution temporarily to something like 2650x1440 and just share the whole screen.

The problem is that as far as I can tell, (a) isn’t an option, and while I can (b) change my resolution to something 16:9, it renders wide across the screen turning effectively every pixel is a wide rectangle. It’s… hard to look at.

I’m using Arch with GNOME+Wayland. Is there some way for me to do either of the above?