It is just super unpleasant to write low level software in rust.

There is a colossal ergonomics difference if you compare using clang vs rust to writing a hashmap for example.

C compilers just have everything you can think of because everythin is first implemented there.

Using anything else just seems kind of pointless. I understand new languages do have benefits but I don't believe language matters that much really.

The person who writes that garbage pointer soup in C write Arc<> + multi threaded + macro garbage soup in Rust.