1) C is no C++, C89 and C99 are good enough for legacy/embedded systems. Also, C is the Ur example for anything. The golden standard. Like English for business and STEM. Not the best language, maybe, but it runs everything technical.

2) C++ it's a monster which should died long ago.

3) Go should take the role of small tools such as some services and mail/IRC clients, especially for CLI/TUI. Or stuff like urlview. Rust the big ones (media encoding, PDF libraries, browsers...)

4) Unreal 6 will ditch c++. Good riddance.