This is a good article on "How Twitter will break in the coming weeks" and I have already noticed some of the things they mention here: https://www.technologyreview.com/2022/11/08/1062886/heres-how-a-twitter-engineer-says-it-will-break-in-the-coming-weeks/
MIT Technology Review · Here’s how a Twitter engineer says it will break in the coming weeks
@drhettie I had been noticing the point about notifications being "a little off." I'd see the notifications and the number indicating how many were there went away like it is supposed to do. Then it would come back, but I did not have any new ones. 
@drhettie interesting, very interesting