I do too! One thing I do hope happens is Giraffe is able to use some of the newer APIs to simplify configuration. Config is generally something you stuff in a file to not look much at, but it can sometimes feel kinda hairy.
Suave is a cleaner API in my view but Giraffe has better performance on the edges.
When I was doing F#, I loved both of these projects. I don't think we should always view ExpressJS/Sinatra (from Ruby) as "the standard", but there's also something to not having to do an hour of work before we can get endpoints serving responses.
Suave can do an API server in a few lines in an F# script file - I think it’s even terser than ExpressJS, which requires a package.json.