jQuery is the more common of the two in our index: it runs on 30,689 websites against 71 for lite-youtube-embed, and 40 sites use both. Counts come from real scans, not vendor claims.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
The lite-youtube-embed technique renders the YouTube video inside the IFRAME tag only when the play button in clicked thus improving the core web vitals score of your website.
40 sites run both jQuery and lite-youtube-embed. That is 56% of the sites using lite-youtube-embed, the smaller of the two.
Want to know which one a particular site uses? Look it up and see its whole stack, or compare two sites side by side.