Doubt it. It’s more likely that the video you’re trying to share had a weird codec or an exotic format. If you recode it in another format, you’ll be able to share it. You could try this using any video editing software.
Basically the same thing I replied to this same post shared on privacy@lemmy.ml. This 2.5 years old video proves nothing, I don’t trust Facebook nor Meta, but this is a poor quality post.
Here is an alternative Piped link(s):
https://piped.video/watch?v=_Q-jWYYOP14
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I’m open-source; check me out at GitHub.