At the very least there was halo and gears. Pretty sure there was more. You probably weren't paying much attention to the indie games.
But all are on PC.. so no exclusives and no point of me ever buying a Xbox one.. I love my 360 and have like 4 of them with around 80 physical games.. but I haven't been interested in buying a Xbox one yet. PS4 and Switch and PC is all I need. No point to have a Xbox really..
Windows is microsoft.
Also I'm starting to realize, people just judge these things on exclusives rather than what they showed don't they?