I worry about YouTube RSS feeds getting popular and Google killing them. Every time I see them discussed publicly I have this "Ssshh! Keep it on the down low!" reaction.
I browse YouTube anonymously, have an ad blocker setup that pretty much eliminates all ads, and track my "subscriptions" with RSS. It's highly usable. I use a fork of tt-rss and actually embed the YouTube videos in the reader pane so I never see any of YouTube's algorithmic recommendation schlock (beyond recommendations at the end of videos, which I ignore). Browsing YouTube, the site, is a jarring nightmare.
I am considering having my podcatcher use a YouTube downloader to just pull down all the videos in the feeds I watch. I believe Google is throttling yt-dlp to realtime speeds, but I figure if my podcatcher is doing it behind the scenes that shouldn't matter. I maintain curated collections of podcasts I like (in case they ever disappear), and since I just added 40TB if storage to my home system I figure it's time to do that with YouTube too.