That's interesting. I've been using "deno fmt" as of late and it's been fine for me.
At my last job, we had a lot of fun with Prettier. We basically made our Typescript codebase look as much like Go as possible. I am not sure this is a particularly valuable endeavor, but it was fun. So if people are willing to spend $20,000 on making that faster, whatever. They can have that fun, I guess.