Here sucks is in the sense of suckless philosophy, I don’t think everybody likes the suckless movement but I’ve seen that many people, me included, don’t like how modern web apps look like (messenger and tiktok are like the worst). So if I want to make interactive web apps, what are the better technologies to not make the web shittier ?
Javascript has its warts and quirks, but it’s fine. I hated it until Typescript came along. That way you can at least get some sanity checks and keep the language generally in the rails of normalcy.
Like it or not, the browser basically only knows how to run javascript, and using another language to compile wasm is almost certainly going to be more headache than whatever gain you might get.
However, what you seem to dislike is the UX of modern web apps which is barely related to any of that.