Why is my Word window scale so disproportionately huge compared to the others?

I think it has to do with me having used a second, smaller screen in the past, but there's currently no other screen connected to my PC, so I have no idea how to fix this. I've never seen this before and I've used Windows for like 25 years... I don't see a setting for this on Word itself, and scaling down on Display settings makes everything else tiny to read.

I'm running Windows 11 26200.7840