I just checked my xbox, I found many folders and files on x, y and z drivers. I remembered I read somewhere before that these drivers are used as buffer for xbox's system. how come there are files on them?
and what should i do? delete them?

ignore them, games will clear the cache folders if they need them

If you don't have problems with games such as Apex, you can leave the files alone.
But you can also remove them just to make the place clean
You don't care about those files they are just temporary data. You only care about them when they cause a problem, then you'll need to remove them.

thanks for you guys