itsmemudassir
Platinian
game devs usually ban IMEI, every device have their own unique IMEI numbers (15 digits) those are registered to your cellular network providers also, so if someone is banned by IMEI they can't play on the same device until they change it which is not an easy task and requires rooting your device.I don't know what IMEI is or how to change it
But on the other hand emulators are quite useful like LDPlayer, Nox and etc
and IMEI can be changed randomly.
and for the banned device (phone) VMOS App can be used.