So, I own a Roku and Androidtv and I noticed my Roku version of the youtube app is much better, including a much used feature to change user accounts while android tv forces me to sign out and then sign in when changing.
Why is Android TV so far behind and is there any workaround for it?
No workaround and there's no way around it.
YouTube is a web wrapper on Android TV and it's much smoother than it was a couple of years back