beingflo parent
I think you have to be careful not to stretch your learning budget too thin. Coincidentally, I recently started tinkering with embedded as well and decided against using Rust (not new to me) for it because I prefer the well trodden path when first getting started in something. There is plenty of opportunity to venture out later.
Similar to the times when boards with USB support weren't a thing, where you had to program it over serial. Now with USB it's so easy to program these boards, that you can jump right to the thing which interested you from the beginning, without having to deal with things like first flashing an Arduino which then served as a programmer.
I currently don't see any benefit of using Rust on a MCU if you're a hobbyist, but that doesn't mean that it isn't a wonderful language to use on a Raspberry Pi or anything above that.