the game is played on a PC, so we call it the PC version.
just select PC. Rift, Vive, and Index are all played on PC.
I think you're not right. I played on HTC Vive and it's exact difficulty(to speedrun) as Index Valve.(speedrun with spin) But maybe i'm wrong cause i never played on index or oculus so who knows?
Hmm. Maybe it would be great idea.