Gears 5 is the first Xbox exclusive to be released after this major shift, but its not looking great for its Steam debut. Despite landing on Steams top-sellers list, Gears 5 only managed a concurrent player count of 10,196 since its release.
The numbers have declined since then, as is standard, but 10,000 remains a very small figure considering the size of the franchise, and the reach of Steam. Before Gears 5, the assumption was that the Steam audience is hungry for these big Xbox exclusives. For reference, 10,000 is not enough to land in Steams top 25 most played games.
Source: N4G PC Gears 5's abysmal Steam debut could indicate about the audience for Xbox exclusives on Steam