This person that you follow showed interest in this post.

Okay, so yesterday I got a notification about somebody that I follow and it said this person showed interest in this post to the post. Does this mean that whenever I am looking at a video and maybe watch it a few times or save it to a collection that somebody might get notified that I showed interest in this even though I did not like it?? I can’t find any settings to prevent this. Wtf.