When it comes to Tempest 4000 Giles is the Liamasoft coder, here he is playing T4K across all platforms he coded on which includes T4K on a Windows 7 PC 4K display using a SpinTrak USB spinner or a windows USB trackball for the same game, it's my guess that the code is there but is just disabled for reasons...
There is also footage of Jeff Minter playing T4K on a Windows 7 PC at the Liamasoft booth at a convention using his own SpinTrak spinner Giles made for him...
The first Liamasoft project Giles coded was Neon for Xbox 360, in this video Giles is showing all the platforms T4K is coded across, all on which he coded, it is my understanding that T4K is now on the Nintendo Switch which Giles also coded...