I tried Axum recently and had a fairly bad experience. Incomprehensible trait errors, generics all over the place, and mind-numbing async glue code. Salvo wound up being way more straightforward for my (admittedly simple) use case.

I haven't written a Rust web server since before async/await, back in the Actix days. Axum is definitely an improvement on that. But I think the async ecosystem still has a long way to go.