One of the best features of Xbox Series X and Series S is Quick Resume, which holds games in a sort of "suspended state" so that players can jump back in at a moment's notice.
However, as you may have noticed playing on Christmas Day, the system isn't flawless. For one, many apps simply close because they don't support it.
For another, there's no way of telling which apps are ready to be resumed.
Microsoft's support page has the following to say:
"Quick Resume is available across most of our most-played titles. Some games that are played less frequently won’t be supported but we’re working all the time to add Quick Resume support for more games."
Though if your favourite title does allow the feature, this is how you use quick resume!
Xbox Series X and Series S: How To Use Quick Resume
Pick up and play where you left off! Source: Xbox
The good news is that it's remarkably easy to toggle between games when Quick Resume does work.
All you need to do is jump from one game to another, either by pressing the Xbox button and going home, before selecting another title, or by going via recently played titles in the Guide itself.
If the game you've chosen is being resumed quickly, you'll see a logo in the top right that says "Quick Resume".
In our testing, we've found it's the optimised titles that need a fix, while I was able to jump between Xbox One, Xbox 360 and even original Xbox titles with relative ease.
We also found that the feature doesn't quite work for online games like Destiny 2, as the servers on the game's end will kick you out to the Menu for inactivity!
It's a shame, but makes some sense, and you can at least load back to that menu quickly!