Yes, TypeScript can get very complex too. But there is little overlap in the complexity of TypeScript, which mostly comes from learning how to program within the structural type system; and Rust which is about memory management without a GC.

Rust and C++ are like Hebrew and Arabic. Difficult languages for an outsider, but if you speak one you have a significant head start towards learning the other. TypeScript is Japanese: knowing Japanese doesn’t help you speak Arabic, despite both being difficult.