I don’t know. What I currently have setup is an RSS aggregator called Miniflux that fetches the feeds every hour.
What are we supposed to do? Google has the largest monopoly in the world. I used to be happily self-hosting Invidious and now, it straight up doesn’t work. The current public Invidious instances are very slow compared to regular YouTube, and the apps I even have managed to work now are Grayjay, FreeTube, and MPV. I just gave up and went back to regular YouTube.
This isn’t going to change anytime soon till more people start caring about their privacy online. Regulation can also take a part in this, but in the US the only laws that are vastly even close is the CCPA in California.