There's a weird cognitive bias where somehow people justify "I compiled this Hello World C++ project " as "C++ is easy" and yet "I wasn't able to understand how this optimized linear algebra library works" gets classed as "Rust is hard".

In reality it matters what you already know, and whether you want to understand deeply or are just interested in enough surface understanding to write software. There's a reason C++ has an entire book about its many, many types of initialization for example.