Xbox series won’t read some Xbox one games or some Xbox series x games

Xbox one isn't xbox one s or x compatible they are all compatible it's only the x that has some enhancements but generally the game will download on any xbox one

Series x is just xbox series s or x

Not xbox one s

NO! Unlike some games that have an Xbox One version that will upgrade to the the S|X version if you put it in a series X, NBA2K for S|X is a complete different version than the Xbox One version and it will not work if you put the disc inside of an Xbox One. Xbox One cannon run a Series X game and putting a Series X disc inside an X1 will not install the X1 version.

Yes. Some games are exclusive on Series X and it appears on the Xbox One store.

Yes, some multiplayer games on the Xbox Series X and Xbox Series S can cross play with the PS5.

Hi Jevgeni. My name is Kyle and I'm an independent advisor.

The Xbox Series X is the world's most powerful console, it provides the best performance and graphics in games optimised for Xbox Series X|S and Xbox One X.

The Series S is significantly cheaper, but is not as powerful. While it still offers good performance and image quality, the Series X is noticeably better in some games. Despite this, many of the performance and graphical features from the Series X are also available on the Series S.

Overall, the Xbox Series X will provide the best gaming experience. But if you're looking to save some money, the Xbox Series S is an excellent choice. The money you save from buying the Series S could be used to purchase some games for your new console.

For more information, this page offers a comparison between both consoles: https://www.xbox.com/consoles/compare

Please reach back if you have further questions.

Thanks,
Kyle