Honestly much more reasonable than coming up with three different terms.

Might be a German thing. For us, they are all “Klammern” and we call them either round (rund), angular (eckig) or curved (geschweift).

As a computational physicist, I appreciate operator overloading IF used properly.
Example of a good use: + for matrix addition
Example of a bad use: left shift operator << as a pipe
I still don’t understand who’s in the C++ committee that they would choose this garbage over a function