Comment by erk__

10 hours ago

YouTube still does

    <feed xmlns:yt="http://www.youtube.com/xml/schemas/2015" xmlns:media="http://search.yahoo.com/mrss/" xmlns="http://www.w3.org/2005/Atom">

I don't think they are linked to anywhere but the url is http://www.youtube.com/feeds/videos.xml?channel_id=<channel_id>

The channel pages still have auto-discovery links. So if you paste a channel URL into your feed reader it should find the feed easily.