Yeah it seems like a pretty big one to maintain!
It lost alignment with my room, it was off by like 45 degrees. So I clicked reset, that worked to redo the anchors.
My experience as a new user was, set up the walls with AR, that was cool. But then I went to play my first game, and it was still in AR mode. I thought at first that's how it was supposed to be, or it was broken. No idea it was even something I could turn off. I finally figured out I had to quit the game then go to settings. You gotta remember most people have no idea "AR passthrough" is even a thing, they just can see the world or not.