> In most builds mpv has yt-dlp integrated, you can directly pass the URL to it.

Last time I was passing youtube URLs to mpv, it relied on having an executable named youtube-dl.exe somewhere visible to the mpv executable. To get it to work with yt-dlp, I had to copy and rename the yt-dlp executable.

> has yt-dlp integrated

Have they switched to supplying their own youtube downloader instead of just working with whatever you happen to have in your path?