I’m using this all the time myself. There is no login to YouTube required and it supports adding subscriptions and doing everything important you can do on YouTube.
And the best part is no ads whatsoever.
FT-Sync (in beta) has just been released.
Also on the dev’s website (in French)
I think Linux only, and between desktop clients, no mention of Android.
Also manual install, but it’s not too hard.
All they need now is an iOS/iPadOS app.
Can I see dislikes tho?
Yt in browser (ff+UBO) plays less than a minute, then stops. Freetube works. I hate google.
I use ff+uBO, and all works, never saw an ad. I am also using a VPN that blocks/filter ads, that might help.