Materialious is usable on Web, Android (TV too) & Desktop.
It can be used with Invidious or using its own YouTube backend.
Has its own account system with end-to-end encryption for subscriptions.
The thing about these front ends is that Google will eventually get around to blocking your IP. After many unsuccessful attempts that got ban hammered after a week or so, I finally got it to work. I piped it through Cloudflare Tunnels/Zero Trust. Haven't had an issue. My deployment was the Invideous with companion app. The Companion app has been complaining about being unhealthy for ages now, but it keeps right on ticking. I don't watch a huge number of YT videos. Usually my consumption is a tutorial here or there.