Why do YouTube pages look zoomed in and cut off?

From a few minutes ago this problem presented itself. Not really sure how to explain so I will post pictures. I’m using Chrome and it is zoomed out on 90%. Been using it like that for years probably.

This is how it looked until few minutes ago. Picture is taken now while using incognito mode. Until few minutes ago it looked like this even when I wasn’t using incognito mode. Also, when I change account it looks like this.

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This is how it looks now when I’m using standard window. Notice how it changes based on width of video.

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Notice how different section where recommended videos are looks. Honestly, I have no idea what happend. I think it has something to do with video aspect ratio but I don’t know how to fix it.