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.
A lot of creators have no way to gain relevancy besides having algorithm-assisted RNG place their video on someone's page, and the aggregate everyone used to count on - the Subscriptions page - has been a mess for years. The site's design stymies its own creators' growth.