I don't understand this sentiment. Rust is the only language ecosystem where I find that anything works at all. Whenever I have to build something not built in rust, I'm praying. With rust made tooling, I just never have problems.
The only case I know of where I would need a Rust program is to check a blake3 hash. That won't last.
I am not sure what "essential tool" means if pandoc included in it. For me Intellij, Eclipse, Dbeaver are more essential (+ few other Specific tools based on Eclipse).
C# - I am not sure, MS Office?
I've heard good things about Bat and Exa - I personally have never felt a huge need for them, but other people claim that they're pretty essential to them.