can you show me proof of this working? Unless you are re-encoding the mp4 there's no way quicktime will be able to open a youtube mp4.
yt-dlp --format 18 'https://www.youtube.com/watch?v=cWxh9lGOeqQ' --output 'FuckingGenius.mp4' && open -a 'QuickTime Player' 'FuckingGenius.mp4'
No reencoding, just getting a video straight from YouTube and playing it in QuickTime Player.Thanks. I played around with your idea and got this. It’s still not 100% of videos. Only YouTube videos that have any H.264+AAC stream available (which is 99.9% of public YouTube today, even if the main/default version is VP9 or AV1).
But re encoding to solve this is not required. I stand corrected.