Yeah, just having the standard library container types (or similar generic third party libraries if you don’t like std ones, eg I tend to use phmap maps and sets instead of std::unordered_map/set). Templated containers just make using them so much easier than generic containers in C. Ergonomics matter when you just want to get things done. Plus the C++ containers make it easier to manage memory IMHO.

The main reason I still sometimes use C is compiler support for microcontrollers where everything tends to have a C compiler but not everything has a C++ one (or if it does, not necessarily an up to date one).

I don’t use either in my day to day really but I do have sone personal projects. Ultimately I foresee doing these in Rust where I can, but for stuff like hobbyist game development, I’m currently too bought into some of the C++ libraries, primarily EnTT, but even there I think I’ll eventually just end up using Rust with Bevy. For now though, I actually quite enjoy using C++17 (and maybe 20 soon if I find the free time).