Not sure if this has been mentioned before, but would moving the “three dots” farther away from the follow/unfollow button be out of the question?
I’m not sure if the unfollow glitch is even a thing still (or was), but I’ve accidentally unfollowed people because I have zero coordination when pressing buttons that are located close-together.
It’s happened quite a few times, and this would save people from awkward situations.
Another alternative would be a warning screen pop-up for when you press “unfollow”.
Just a few thoughts to consider…