Javascript was a meme language, but it was easy to use and highly accessible. Now its everywhere, in everything, including places it has no business being.
React has become that for frontend development. React is easier to use than Svelte. I got excited when I first learned of it, but its awkward to use at times and far more quirky than React.
As others have pointed out, that bleeding edge performance is only as great as what you are building. If you don't need to update the DOM multiple times a second, then it barely matters.