I only use YouTube through these third party privacy tools.
https://libredirect.github.io/
I noticed that when you access YouTube videos through this you can just right click and download.
Re:Updating our inactive account policies
by Efimeridopolis on Tuesday May 16, 2023 @04:49PM
(#35967560)
you are right but for your case, yt-dlp.
I have a very old youtube account which I can't recover, in fact there's 2 of them. They have content on them that I will never be able to reproduce, but I watch it from time to time for nostalgia.
This post means that Alphabet will delete old legacy content on a huge scale. The world will be poorer for their culture. It will lose the ability to watch very old youtube videos.