The writing is on the wall for easy ripping. If there's any YT content you expect you'll want to preserve for a long time, I suggest spinning up https://www.tubearchivist.com/ or something similar and archiving it now while you still can.
This solution looks interesting, but I am technical enough to know that this looks like a PITA to setup and maintain. It also seems like it is focused on downloading everything from a subbed channel.
As it is now, with a folder of downloaded videos, I just need a local web server that can interpret the video names and create an organized page with links. Is there anything like this that is very lightweight with a next next finish install?
You already need such things for certain formats.
I think we can safely assume that the only content under DRM at YouTube today is the content where it's absolutely legally necessary.
But if they decide they have to, they can do it fairly trivially.