Embedded YouTube clips sometimes auto-playing

Recently I have noticed that certain embedded YouTube clips have started auto-playing - for example the Veep clip in this post, which doesn’t autoplay when I open it in a browser.

Notably this problem does not occur when viewing any feeds that are YouTube channels, nor is it consistent between other stories with embedded YT (for example no problem with this article).

Not a huge problem but it can be annoying so thanks for taking a look!

What platform are you on?

Ah, sorry - this is on iOS.