I have been way more productive with Rust than with C++.

For instance, I haven't yet had to debug weirdly muting memory, deal with the immense nuanced possibilities of doing the same thing (there's a reason for CPP core guidelines), stuff like the rule of five, writing cross platform cmake files that include various libraries, ...

Not proof for a general statement, but another example from a Rust adaptor

Rust removes a lot of the debugging and performance tuning, that happens later in production. Is it easier/faster while you are learning. Nope. When you understand it, sure it could be. This depends on the person. Just like how someone might be faster or slower at a specific framework within the same language.

Imo I write programs faster than other languages because the compiler helps me out. Your mileage may vary.