jQuery still powers 85% of the crawled sites. React powers 5% of the crawled sites. Wordpress usage is still massive. 75% of sites using a CMS are running on wordpress.
https://www.stefanjudis.com/blog/highlights-of-the-http-archive-web-almanac/
ref - https://almanac.httparchive.org/en/2019/
origin - https://www.pipiscrew.com/?p=16415 highlights-of-the-http-archive-web-almanac