Is there a video you don't need to log in to view?
The fourth one (instagram) doesn't require login.
Side note: annoying that twitter/X requires login. I'd have sworn Elon said he was removing that requirement to login to view tweets (I think he discussed it with George Hotz).
Found it: https://www.youtube.com/watch?v=FkNkSQ42jg4&t=49m30s
Elon:
> This is insane. You shouldn't need a twitter account at all unless you need to write something
George:
> Why did you put the pop up back?
Elon:
> We should not be prohibiting read-only scroll
So there seems to be agreement that twitter shouldn't require an account to read (view) posts. The Twitter Space is from 23 Dec 2022 so perhaps things changed since.
Instagram requires login. Twitter does not.
I just closed the login prompt for the insta link, and watched the video. So it does prompt one to login, but it definitely isn't required to watch the video from that link
I'd have sworn I was unable to view tweets recently without logging in. But maybe I was wrong.
Instagram lets me view the video without login (I have to click the 'X' in the top-right of annoying popup, but I can watch it without logging in).
It's not just you, they've been inconsistent about letting you see tweets.
Musk's promises never age well, but, really, this particular dialog should be a meme.