C++ is known to be a very powerful language. C++ allows you to have a lot of control as to how you use computer resources, so in the right hands, its speed and ability to cheaply use resources should be able to surpass other languages. Thanks to C++'s performance, it is often used to develop game engines, games, and desktop apps. Many AAA title video games are built with C++.
C++'s greatest strength is how scalable it could be, so apps that are very resource intensive are usually built with it. As a statically typed language, C++ is generally more performant than dynamically typed languages because the code is type-checked before it is executed. You have a lot of control over how your app uses resources, your app can take up a very little resource. All in all, since C++ can be very performant in the right hands, enterprises often use C++ to code functions that have a critical reliance on speed and resource usage.
C++ has a huge community around it. Community size is important, because the larger a programming language community is, the more support you would be likely to get. C++ is the 6th most used and followed tag on StackOverflow and GitHub.
C++ has a very big job market as it is used in various industries like finance, app development, game development, Virtual reality, etc.