Every YouTube video I see on my PC is rotated 90 degrees to the left. I can't Full Screen it because the Full Screen tab

disappears above the top of my screen. I can click the thing that makes it reduce down into the corner. I just want regular YouTube back.

I've been all over the net, but all the "Rotate YouTube" videos assume it's for one I uploaded wrong. This is on every YouTube video.

It happens when I watch YouTube via Chrome with Duck Duck Go. It doesn't happen when I watch YouTube on Microsoft Edge, even if I copy a sideways YouTube URL from Chrome and play it on Edge. Edge is OK.

It's frustrating. Anyone have a solution?

Edit: I updated Chrome. My YouTube videos are still sideways.