Which C++ compiler I am using?

Hi!

I am using CLion on Ubuntu 22.04 LTS. I googled to find out which C++ compiler is being used as default in CLion. I know, my machine has installed GCC compiler, so is CLion by default using this? From this information (screen shot), I did not see any information at all. Could you please tell me how I can find detailed information about the compiler? I can see the debugger GDB being used. 

Thanks.