TBH, I don’t really see a point using jQuery nowadays. It used to be a life saver ~10-15 years ago, but now you can do basically all the same stuff with pure JS and UXP supports most of it. Is there some other specific case you want to use jQuery, that would be difficult with vanilla or is it just similar cases like checking if checkbox is checked?
Bumping this. JQ is made of JS, so anything JQ can do JS can do. What JQ brings is a concise and efficient way of doing a lot with considerably less effort. Makes for very tight, powerful and flexible code. I’d love to see JQ support in UXP.