Yes, I think that the many Gigabytes/GB which Android uses to install the operating system is preventing some gamers from playing as many big Android games as they want to because of too little free space.
There are Android phones and tablets which don't have a MicroSD Memory card slot, and the bundled apps sometimes can use many hundreds of MBs of storage space which some gamers may want to use to install more games.
Plus, some phones and tablets have smaller size limits for MicroSD cards where you can only use a 32GB memory card. The prices of bigger MicroSD memory cards can cost a lot of money as well.
Not all phones MicroSD card can be used for storing games, and apps, and the MicroSD card can only be used for storing videos, text, and other files which are not apps or games.
There are Android phones and tablets which don't have a MicroSD Memory card slot, and the bundled apps sometimes can use many hundreds of MBs of storage space which some gamers may want to use to install more games.
Plus, some phones and tablets have smaller size limits for MicroSD cards where you can only use a 32GB memory card. The prices of bigger MicroSD memory cards can cost a lot of money as well.
Not all phones MicroSD card can be used for storing games, and apps, and the MicroSD card can only be used for storing videos, text, and other files which are not apps or games.