I used both rust and zig when they were new and I found myself focusing too much on the language instead of what I wanted to do with it.
Zig doing breaking changes was especially frustrating for some time.
Also all the things that would be missing from the language. Sometimes I realized I need that feature some time into the development and then the compiler doesn't have it.
Mojo being also a new language, I would think just writing code in C or C++ would be more stable and useful for me.