You cannot run Archicad 16 on Apple Silicon (M1/M2/M3) natively or via Rosetta. You would need a virtual machine running Windows 7.
Second, for students and educational institutions, older versions archicad 16 download updated
are you planning to run Archicad 16 on? Are you looking to download the full installation , or Install old libraries - Graphisoft Community You cannot run Archicad 16 on Apple Silicon
Free architectural design software — Archicad download & registration for students and educational institutions