It’s pretty trivial to pickup if you already know C++ and something functional like OCaml or Haskell, it uses concepts from both so I picked up it fairly instantly, after that it was just acclimating to its setup of things (which is awesome compared to both C++ and OCaml/Haskell by a wide margin, lol).
However, it is big like C++ and OCaml/Haskell, so if you don’t know them it’s basically like learning a large subset of them, hence its size.
It is a lot easier to jump in to in a lot of ways thanks to its awesome compiler helping you though.
You would be surprised at how HUGE the webdev community is in rust, both for making backend servers and for making frontend wasm UI’s and everything in between.
There’s a reason that Rust is the most used wasm language after all, lol.
Personally I’ve been using Rocket for the backend side and mogwai for the frontend side. ^.^