Halo: Infinite is available in less than a month. The problem with Steam players is that a big chuck of the reclaimer story is MIA jumping from Halo 4 to Halo: Infinite.

The reclaimer trilogy started with Halo 4 and continued with Halo 5: Guardians before Helo: Infinite completes the saga. The PC gamer is not being provided with Halo 5 so this hurts the lore for PC gamers.

When Halo: Master Chief Collection was offered on Steam it was incredibly well received. The game topped third on the Steam chart with Halo: Reach. The PC crowd was very pleased with the remastering of the game to run well on Windows.

Evidently Xbox is not ready to publish the game on the PC. Most likely it will be ready some months after Halo: Infinite releases.