to find out what a programing riding on another program

I have searched the web, but find nothing regarding this issue:

let me use clipgrab for example:
Since Clipgrab is using youtube-dl to download video. while newer version of clipgrab is using yt-dlp.
how to know if the clipgrab is using which program ?
I tried to search clipgrab in Htop, but it just does not show youtube-dl nor yt-dlp.

example2:
i would like to know what program mpv riding on when i use mpv to play youtube url.
does the mpv uses youtube-dl or yt-dlp... ? that's what i want to know..

Please tell me how to do it.
Thx