Xbox will let you install games before you buy them - Polygon

Players have noticed a feature, in beta, allowing users to download any game in the Xbox marketplace, whether or not they have bought it. They can’t play it, but it does mean they can have it fully installed and ready to play on launch day — even if they’re buying it on disc.

Xbox One: always-on, used game questions remain unclear

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Xbox One games install sizes add up fast

Xbox will ALLOW Players to INSTALL Games Before BUYING

Xbox Pre-install Physical games you don't own yet and save time! Copy this feature PS5 & Switch!!!

All Microsoft-Published Games Will Now Be Xbox Play Anywhere : r/Games

Game Pass Everywhere: How to Install Xbox Cloud Gaming on Steam Deck

Xbox (app) - Wikipedia

Xbox One - Wikipedia

The Xbox Series X master plan - Polygon