Sync displayed it properly. Pretty cool to see as I’ve never seen dynamic scaling like that.

Findings (feel free to add your own):

• Official web client: Keeps the scale fixed
• Summit: Keeps the scale fixed
• Connect: Video won’t load
• Quiblr: Can’t display video internally
• old.lemmy.world: Can’t display video internally
• a.lemmy.world: Can’t display video internally
• m.lemmy.world: Post never loads
• photon.lemmy.world: Same as web client