FF is better known for running on low-end devices that makes it unique from its competitors. But the MAX version will offer Ultra HD graphics, a reworked gameplay experience, better visuals, and much more, so much of the features require high-end devices.
F FIRE MAX checker is able to check if your device support MAX version or not by checking
Graphics Requirements
-RAM
-CPU
-ANdroid Version
-Storage of Phone
F Fire MAX is the enhanced version of the standard F Fire app. The MAX Version is a separate application that will support cross-play with the standard Free Fire version and runs on the same server