Seems like Piped and Invidious are both on their last legs. Public instances on both services are pretty iffy, they go down fairly often now. Freetube works well on desktop but no real way to sync subscriptions and watch history to a phone. Self-hosting Piped/Invidious might be the solution but I don’t know if it’s worth the upkeep when YouTube is actively fighting against it.
Selfhosted Piped instance. LibreTube with my instance on mobile, the piped web ui for the rest.
When you selfhost an instance, it works way better than any public one with many users.
Is there anything like LibreTube for iOS?
Yattee is probably the closest equivalent.