If you think a strong and convenient type system helps with functional safety, then Rust helps with functional safety. This is also generally the experience in the industry.
I am not convinced a strong type system helps with functional safety and I am not even deeply impressed by Rust's type system. The scientific literature does even seem even that clear about whether a strong type system substantially reduces software defects in general. I believe in proofs though. I generally believe complexity is bad and both C++ and Rust are too complex for my taste. I also think Rust has severe supply chain issues.
