This is one area where I imagine C++ wannabe replacements like Rust having a very hard time taking over.
It took almost 20 years to move from GPU Assembly (DX 9 timeframe), shading languages, to regular C, C++, Fortran and Python JITs.
There are some efforts with Java, .NET, Julia, Haskell, Chapel, Futhark, however still trailing behind the big four.
Currently in terms of ecosystem, tooling and libraries, as far as I am aware, Rust is trailing those, and not yet being a presence on HPC/Graphics (Eurographics, SIGGRAPH) conferences.