Based on the feed back from many different YouTubers now @TeamYouTube!
YouTube is infact broken. Notifications are not working. And people are getting recommended videos that are two months to two years old.
Youtubers are experiencing a 20% to 30% loss in views.
it doesn't look broken to me imo they're just trying to promote old videos with less than 1m that can be potentially grab the viewer's attention