Slowly fetch and remember videos

[Araly]

I really like Freetube, but the more subscriptions you have, the more difficult it gets to use. I have 300+ subscriptions, and I constantly get freetube not able to fetch videos. There's not much that freetube can do to not get throttled even with RSS if it asks for 300 at a time.

Newpipe does them one by one and it's slow, but it's able to get the videos. Also I can start a fetch a few minutes before I want to watch youtube, and when I come back it remembers the videos it already fetched.

Feedbin (or any other RSS reader) fetches for its sources on its server in the background over time, and the client is only to interact with what's been fetched already, nothing in fetched when I log in. (I have a lot of bluesky RSS feeds that behave very similarly to youtube, in the sense that I will get throttled if I try to fetch all of them at once, but it works perfectly in Feedbin)

Could Freetube follows something like that ? Either slowly fetch videos, with retries and with waiting when it gets rate limited. Or by having a server or deamon or something that runs in the background and fetches videos slowly. And then remembering what videos is already fetched and letting you watch those ?

If not in Freetube, if this is too big to build or not in scope, are there other clients that are known to behave like that for the desktop ?

It feels kind of wasteful to have a good fetch, and maybe mistakenly closing Freetube, and everything's gone, I have to fetch again, and it fails, and nothing's there. I could try to have different profiles for different subscriptions, but then I'll have to keep track of them, and that sounds quite tedious