https://www.techradar.com/news/metro-exodus-appears-on-microsoft-store-is-no-longer-an-epic-exclusive

Metro Exodus won’t be an Epic Games Store exclusive for much longer, as the game has appeared on the Microsoft Store. Although you can’t buy it yet, the title is marked with a release date of June 9.

Metro Exodus has been out for almost four months now, with Epic grabbing the exclusive rights to sell the title for the PC (although some folks did pre-order it on Steam before that exclusivity deal was signed).