Do any humanoid robot startups use rust for their robots?

I’m looking to expand my career into robotics, specifically in humanoid general-purpose robots like Agility robotics’ Digit, Figure One, X1, etc. Do any of these startups program with Rust, or is it mainly C++? I know C++ is a mature programming language and has many tools and libraries specifically for robotics, from ROS to OpenCV.

How do you all see the future of Rust in robotics? If I have zero experience with neither c++ nor rust, which should I start with?