I wish I could delete my FB account but I need it for work. I've deleted my private account and just use another one for work related matters.
I don't have any negativity on my feed anyway as I just unfollow anyone who posts up rubbish like that.
Facebook has always been shady and many new features have been implemented to 'enhance our user experience' but which are actually designed to ram more and more advertising (and therefore, more revenue for FB) down our throats, whether we like it or not... I actually dislike Facebook and all its shenanigans intensely.
As an aside, if you have a FB account, try out the browser extension Social Fixer (definitely works on FF and Chrome but i'm not sure if it is available on other broiwsers as I haven't looked), it can be used to remove
all the adverts, customise the look and feel of the interface and filter out any game, app or phrase/word you want. Without it, I wouldn't be using FB at all, regardless of whether I need it for work or not.
Harrumph... curmudgeon mode off...