If you use DuckDuckGo and use the video search, you can watch many YouTube vids embedded
https://duckduckgo.com/?q=rickastley&ia=videos&iax=videos
Fun fact: some countries have no YouTube ads, so if you use Tor/VPN to change to an ad free country, then can watch ad free without an adblocker.
Yeah, I find it intermittent as to whether it works or not. I'm guessing YT are playing whack-a-mole on that one.