I’m trying to play my Steamdeck on a monitor using the dock. However when I run a game everything seems to run in a small window that takes up maybe a third of the screen? It’s not in windowed mode and I’ve spent the the morning fiddling with resolution settings.

I’m sure this hasn’t always been the case as I’d managed to play Rimworld on the monitor before so I’m not sure what has happened or changed?

I’m pretty tech illiterate so any help would be appreciated.

Thanks