https://wccftech.com/xbox-series-xs-quick-resume-fix/

Microsoft is currently rolling out a new preview update for Xbox insiders that is said to fix Xbox Series X|S Quick Resume issues that users have been experiencing since launch.

Quick Resume is an amazing feature on Microsoft’s next-gen consoles – if it actually works. Even before the launch of the Xbox Series X and Xbox Series S, Microsoft has said to be aware of issues preventing the feature to work correctly. We’ve experienced this ourselves as well with numerous Xbox titles not quick resuming at all and completely restarting instead.