YouTube RSS feeds are now returning 404. This was my primary way of following YouTube channels.
To give an example: https://www.youtube.com/feeds/videos.xml?channel_id=UCcefcZRL2oaA_uBNeo5UOWg
To give an example: https://www.youtube.com/feeds/videos.xml?channel_id=UCcefcZRL2oaA_uBNeo5UOWg