When Forza Horizon 2 launched, Microsoft’s strategy was to drive Xbox console sales. PC gaming via the Microsoft Store wasn’t mature yet. By the time they embraced PC with the “Play Anywhere” program, FH2 was already years old.
The Xbox 360 version has lower quality assets but runs better on Xenia. The Xbox One version cannot be emulated on PC (no XB1 emulator exists yet).
no official PC version Forza Horizon 2 available for download. The game was released exclusively for Xbox One and Xbox 360 in 2014 and has since reached "end of life" status, meaning it is no longer sold on digital storefronts. Official Status Original Platforms
Because the game was never ported or remastered for Windows, for PC.
Late into the night, Alex finally stumbled upon a community thread. The top comment wasn't a link, but a reality check: "Stop looking. It’s an exclusive. If you want the festival, you need the console."