it’s unrealistic to assume it would exist forever.
Older multiplayer games would let you self-host the server, long before the current trend.
Ubisoft doesn’t have to continue to host servers. They just have to release the server code. Zero cost to them.
Because I have YT Premium.
The first party app is pretty good in this case. No ads. Supports offline downloads, including auto-downloading videos from your subscriptions. The search is obviously good, because Google.