PC version Fans have made a PC version. Some are still early, so read the project page first.
Fans took Gran Turismo 2 for Steam Deck, MacOS, Windows PC, PCVR and Quest 3 Standalone VR apart and rebuilt it so it runs natively on a computer, often with widescreen, higher frame rates and mods. Here is the project we know about:
A native C++ port of Gran Turismo 2 for Web, Steam Deck, MacOS, Windows PC, PCVR and Quest 3 Standalone VR