As an aside, having used C++ in the early 90s when it was first available in stand-alone compilers (rather than a preprocessor), it boggles my mind that we are seeing C++26.
C++ also is extremely popular and so it will take years to go away if something better exists. I'm not convinced Rust is better - it has some good points that I find interesting but there are also some trade offs that need to be made and so I'm not sure they are better.