So if you want to get notifications you can Subscribe, click the Bell and the Exclamation mark that they are adding next week. Or you can use a system that just works.
However it's against YouTube's terms of service to download and so they don't provide the media in the feed, so you still have to use a YouTube app.I use NewPipe.
So when you are ready to watch videos, go to the podcast client, and click "View Website." Then the dedault app will launch.
Note: the podcast app has to support Atom but it's been a standard for 11 years.