There is a lot of great libre software on Windows but our focus was on ones with cross platform support. This way chapos can see that switching to linux is pretty easy and that they can keep using most of the same software anyway
I don’t know why you have this problem but Invidious should fix it. It’s open source, privacy friendly with no ads and you can use it to download video/audio.
This extension should automatically redirect Youtube links to Invidious. Let us know in !libre or dm if you have any problems with it.