You obviously haven’t ever worked in construction.

T-20 T-25 T-30

Square heads (Robinson) are used by millwork guys (cabinets)

Hex head are also used a lot

Edit: Also the fucking electrical screws that home depot only sells ONE FUCKING SCREW DRIVER FOR and its in a 3 pack of Milwaukee electricians insulated screwdrivers, it’s ECX 1 and 2