I also program in tons of languages, including Rust, C#, C, C++, PHP and Java, and, no offense, I think you are full of shit.

Haven't had anymore issues programing in C# on Linux than on Windows (if not less).

Rust certainly isn't as complicated as C++, and the complexity over C is well worth it, specially given the better ergonomics. Writing properly safe code on C or C++, however, will basically have you emulate the Rust compiler through tooling or inside your brain, which bears its own complexity.

Don't get me started on the PHP/Rust comparison, what is even the similarity here?

This just reeks of bad faith.