I use Pinchflat, there's a similar one called Youtarr also.

I can see the appeal of downloading YouTube content opposed to streaming, however if folks are looking to stream I would suggest Invidious + Freetube.

Seconded. I self host it for family members for that reason!

Also using this and have been for around a year now. I set it to pull thumbnails and descriptions off the videos and give it a specific folder in my main media drive so it’s easy to pick up in Plex. Worked great so far!

Worth noting too: you can set it up to monitor a playlist. I use this feature by making a public playlist and I add stuff to the playlist that I dont want to lose.

This looks great! I'm looking into this now, to see if it's compatible with my current workflow and hardware. Thank you!