If you are an Android user trying to optimize gaming performance, you cannot easily swap the kernel driver without root access. However, you can manage the or utilize driver wrappers.
If you are benchmarking drivers or tweaking settings (using tools like GPU Turbo Boost or Magisk modules), look for these metrics to define "best": mali gpu driver best
Mali drivers (both open and closed) support the full ARM GPU feature set: If you are an Android user trying to