just a tip. When copying and pasting YouTube links, if you use the short link like you did here you could save some grief by removing everything after the ?
It's tracking info, which if you're logged into Nostr and youtube on the same device and click a link on Nostr to YouTube with the tracking, it "links" your Nostr account to your YouTube account on their backend.
If you use the full link (https://m.youtube.com/watch?si=XUQNlADkb1sNyosp&v=D4ZjtzlgSf4)
Then you'd have to remove "SI=longstringoftext&" which would leave only the video.
An alternate idea is to just paste the link into https://invidi.link and hit "Go random" and then share the link it sends you to. Those sites will never have tracking, no matter what's in the link.