IDE tools like what? LSPs for Rust are on par / better than that of C/C++, partially because of language being stricter, no #include nonsense etc. Unlike C/C++, sane build system and dependency management system that are universally agreed upon actually exist. What exactly is "going take a while"?

I would assume debugger support. Rust is in a tough spot because a lot of code gets compiled away, and debuggers need to understand some Rust-isms for good experience, like enum support. I don't think this is an insurmountable situation, though.

People universally agree that replicating NPM's dependency hell was a good idea?

>it's going to take a while, and Rust has been here for 17 years.

Technically correct, but Rust was changing significantly from version to version prior to the 1.0 release some 8 years ago, notably the green thread runtime was removed.