I mostly use C when I need to speed up some bits in our codebase; and I have no chance to ask people really working in C++/Rust which can give help me decide; the people I know use C++ for games or QT. The ones I know that touched Rust gave up after 1.5 weeks.

As you say I wanted to know how's the scene at the moment; I am very disconnected from how they have both evolved and their future (mostly because what I see is hate to C++)