in theory, comet should handle it, but it is inconsistent for me. does it depend on the game? for instance, i only got achiements in brigador, but i played art of rally, dungeons 2-3, and a couple others which should have achievements, but didn’t get any

tbf with heroic launcher starting to implement comet (galaxy api), it might not be needed anymore

osx has an even lower market share (at least according to the steam survey), and they made one for it

but think of the achievements!!

why do you need to switch? win+p is the switch between mirrored and joined mode right? why not just let the system handle it?
i too have a few consoles and i use a hdmi switch before monitor 1 and on the 2nd monitor i sometimes switch between hdmi and vga for an older pc, but i just let pop do whatever