Rust has gained significant attention and popularity among developers due to its robustness, memory safety guarantees, and emphasis on performance. However, beyond being a language, Rust is also a thriving programming project with a vibrant community...
Yes, as rust has built in support for riscv but not the Xtensa architecture that the other ESP chips use. There is esp-rs/rust fork that add support for these using a fork of llvm. So you can run rust on the other chips but need to build your own rust compiler do to so. Hopefully this work will be unstreamed someday but it could take a long time to do that.