Let's be real here, was a PC game like Alyx ever, and I mean ever going to win anything, let alone GOTY?.
Previous winners from the year 2002 in order: GTA: III, GTA: VC, Doom 3, GTA: SA, Elder Scrolls: Oblivion, Gears Of War, COD:4, Fallout 3, Mass Effect 2, Portal 2, Elder Scrolls: Skyrim, GTA V, Dark Souls II, The Witcher 3, Dark Souls 3, Zelda:BOTW, Fortnite, Resident Evil 2, TLOU:2.
-15 Western studios
Sony exclusives total: 1 (this year).
Nintendo exclusives total: 1
Microsoft exclusives total: 1
Half Life 2 was voted best PC game (2005).
Obviously you've blown the doors open on a massive Sony/Nintendo/Japanese studio conspiracy.