Well, almost 
The HPC Toolkit installer (at least on MacOS) offers just two options: Intel C++ compiler and Intel Fortran Compiler.
I chose the Fortran and it installed OK, with one warning about my system not being on “supported OSes list” (it is BigSur, maybe too new). “ifort” command works (after sourcing environment config script" but fails to compile even a simplest test code saying
ld: library not found for -lSystem
So maybe the Base Toolkit (or some its components) is required. Unfortunately I am unable to download it. The HPC Toolkit download did not require login to Intel Account but the Base Toolkit does. And for an unknown reason (reported also by several people in Intel Community forums) it keeps asking to register for the Intel Developer Zone, forever. link