That is meaningless to me if the app can't do what I need it to do. I don't need every feature of the YouTube app, but there is some key functionality that I need.
Plus half that is list is just copy cat implementations of other more well used sites.
Who is going to youtube for copies of tiktoks and twitch streaming?
Imagine downloading a free textbook and emailing the creator demanding additional content or else you'd stop using their free textbook? This sort of thing just reeks of entitlement and a misunderstanding of open source more than anything else.
If you don't want to see ads, pay for YouTube Premium if it's available in your region. Otherwise you can certainly create a fork and add those features and nobody will be angry with you.