How many games can you have on the xbox series s and can you download new games without deleting the other games?
You mean the available storage space because you can have endless games.
As far as the internal memory is concerned, the available 364 GB is severely limited on the Series S. How many games you can install depends, of course, on the size of the game itself.
That varies from a few GB to well over 100 GB. With the latter, you only get three games installed.
However, the memory can be expanded. Either with the original SSD memory for which there's a special slot on the console or with any external hard drive.
The former option is still incredibly expensive, but currently the only way to use the advantages of optimized games in addition to the internal memory. If you play an X / S optimized game from an external hard drive, you will only get the normal one version of the game.