Yes, for the sake of your sanity unfollow this friend. I have several who are lovely people, but post on an hourly basis - clickbait articles about poorly children and unwanted cats (mostly cats), lists of "the best beaches/films" you really need to visit/watch, inspirational messages, often involving aloe vera. A local group full to busting with lost pets and subsequently found pets, to the point where you just want to shout at them to shut the ruddy gate! I can barely see the posts I want to see for all this twaddle. Today I have noticed several "live videos" of FB friends just walking along a pavement or gurning to camera, so this must be the next delight to come. I have unfollowed so many people recently I may soon find I'm just talking to myself. 
I do like Facebook really.