At this point is getting a bit annoying to always go to settings in camera because is restarting like the first time playing if that makes sense. i like better the camera framing setting in high but...
Ideas
There is a setting that allows you to change the camera angle to low or high with the R3 button, maybe you have it active and when you hold it for other things it also switch the camera
I cant think of a situation where i would even press R3, ill keep an eye out but its a possibility. Seems like that should be disabled by default if so, lots of players are reporting this as an issue.
Fast travel?