Last two weeks every time I use Piped I am getting error “Sign in to confirm you are not a bot”. It happens on every instance and videos work very rarely. It seems like Google enforces you to log in if you try watch lot of videos from one IP. I hope this will not be end of Piped and there will be solution for this problem.
Upd. I got similar problem on Invidious recently
Sometimes you can find an instance that works but you have to go through a lot of them and it may only work for a few minutes or even less. Invidious doesn’t work at all for me. I hope they find a workaround because I already started committing a very serious crime against my freedom by visiting youtube.com