Since Patch 1.61 on Xbox Series X this game is auto saving non stop, it's beyond annoying. Also I went to do a manual save and after 5 minutes I just said F it and exited out. What is going on?
No issue on Series X for me, and no change since release about frequency of auto-save (about every 3-5 minutes out of combat and each time you exit vendor/stash)
Did you disable the cross progression option in game options ? (which is useless if you don't plan to share your saves on another platform).