There is YouTube++ or YTlitePlus. They haven’t been updated in a while but do work as long as return downvote for shorts is disabled.

I consider it worth it for an ad free utub sideload as well as a manga app I found through AltStore. The utub on its own was worth it.

Just setup a second page in heimdall with Tailscale friendly links. Duplicate what you already have setup and then update links.