Go programs are also statically linked and Go based CLI tools generally only come in at 3-4 MB IIRC. I've used static linking in binaries in Nim and C programs too with similar (or smaller) sizes.

Rust binaries are just impressively large. I'd guess part of it must be how Rust monomorphizes generics: https://rustc-dev-guide.rust-lang.org/backend/monomorph.html