Zig is a drop-in for C. I'm not sure what Rust is but around here no C++ teams seem to be adopting it. Zig on the other hand is seeing adoption in teams who write C for Python binaries. Not a whole lot of it since it's not exactly safe or "stable", but some. Now I'm aware that things like UV are build with Rust, but part of why UV is adopted so widely isn't just that it's fast. It's that it is a drop-in for pip, so that you can compile a requirements.txt and deploy your project without UV, which is handy when you use things like Azure specific Microsoft containers.
Maybe it's just C++ teams being conservative, but a lot of them really seem to hate Rust when you talk with them for whatever reason. I can't imagine why though, but then I've only ever worked with C when I had to, and I have never worked with C++. From having played around with both C++ and Rust, I'd personally pick Rust, but I'm sure it's because I don't know enough. Either way I doubt I'll ever see Rust in a real world job in my corner of the world.
First of all, if I am an evangelist of anything, it is about safe systems programming with automatic resource management languages, if I had a magic wand, we would be talking about languages like D and AOT C#, not Rust.
Secondly, let us know when Amazon rewrites Firecracker in Zig, Android replaces Rust with Zig, or Mark Russinovich goes to some Zig conference explaining why Azure is dropping Rust for Zig,
"Mark Russinovich, Microsoft Azure CTO tells Rust Nation UK 2025 why Azure is moving to Rust from C++"
The only Microsoft divisions that are still all are into C++ is Windows and XBox, and still, C++/WinRT is now in maintenace, the team has moved into windows-rs, WDK now has Rust bindings available.
Microsoft and IBM don't. Then they don't really post jobs for their own stuff. It's mainly to sell consultant services like selling Mainframe SWE's service to banks. If you mean jobs in my area in general then there are a lot of places that offer C++ jobs.
Maybe it's just C++ teams being conservative, but a lot of them really seem to hate Rust when you talk with them for whatever reason. I can't imagine why though, but then I've only ever worked with C when I had to, and I have never worked with C++. From having played around with both C++ and Rust, I'd personally pick Rust, but I'm sure it's because I don't know enough. Either way I doubt I'll ever see Rust in a real world job in my corner of the world.