One of the things that I found lacking, was doing like general computing-esque business intelligence tasks in htmx. For example, how would you set src on image tag upon a click. Ended up having to use jquery.
<img src="my_cat.jpg" alt="My cat" _="on click set @src to 'my_other_cat.jpg'"> <img src="my_cat.jpg" alt="My cat" onclick="this.src = 'my_other_cat.jpg'">on click set @src to "https://whatever.com/cat.gif"
the htmx approach would be to replace the image tag entirely