Even more hilariously, if you upload to YouTube then try to download from your creator dashboard thing (e.g. because you were live-streaming and didn’t think to save a local copy or it impacts your machine too much) you get some shitty 720p render while ytdlp will get you the best quality available to clients.

Oh, that reminds me of a similar experience with Facebook video. Did a live DJ stream a few years ago but only recorded the audio locally at max quality. Back then, I think I already had to use the browser debugger to inspect the url for the 720p version of the video.

When they recently insisted by email I download any videos before they sunset the feature, their option only gave me the SD version (and it took a while to perform the data export).