Hey, DPI Wizard! I appreciate your quick response. I'm not sure if you mean it doesn't affect the rotation distance as in it won't change your base or it just doesn't affect it at all. But it does affect the rotation distance and not just change how it feels.
Look at this video I did measuring mouse rotation required to the edge of the pillar on the right-hand side of my screen:
https://streamable.com/qiipd0
The first test, far from the wall, is 1666
The second test, close to the wall, is 1970
As far as I've tested, this does not happen in any first person shooters I've played.