https://www.gamespot.com/articles/halo-infinite-doesnt-support-xbox-play-anywhere-we/1100-6460650/

The next big Halo game, Halo Infinite, may not support the Xbox Play Anywhere scheme, it appears. As discovered by DynamiteCop! on NeoGAF, the Xbox.com page for Halo: Infinite does not list Xbox Play Anywhere support for Halo: Infinite.

The page shows that the game is coming to Xbox One and PC, further noting that it will support 4K and HDR, and that it'll be "enhanced" on Xbox One X. However, there is no mention at all of Xbox Play Anywhere, an absence that is notable given that the Xbox.com page another high-profile upcoming Microsoft game, Gears 5, shows Xbox Play Anywhere support.