[casey2]

Not probably, definitely. Nobody wants that of course because it would mean hiring real developers over friends/family. A19 pro is already faster than modern desktop chips let alone something from a few years ago. Almost all their mac software was designed for much more modest machines.

[astrange]

The fast-ness of the CPU is not the only problem. The rest of the hardware of the phone is designed to be a phone, not a Mac.

The battery will discharge faster than it charges, the flash storage will wear out, etc etc.