You could write a compiler for a low-level language in anything. Honestly makes little sense that most people do it in C++ when they're only going to replace it anyway.
Zig > Rust because actually writing safe Rust code
Start thinking more functional, I rarely have issues with the borrow-checker, or even have to write unsafe. But it obviously depends on the context, when the issue at hand really requires a lot of interior mutability or unsafecan be pain.
I'm also super fast nowadays with Rust, probably faster than with any other language (thanks to great tooling?).