The 4th Cortex-A53 core (CPU3) does not seem to work even on the heaviest load like games or video decoding/ encoding, while the other cores are maxed out.
Steps to Replicate:
Note: The tests are performed right after a fresh reboot with no kernel modification whatsoever
1440p60 VP9 video playback from local storage using MPV-Android with software decoding.
While losing a small A53 core doesn’t really affect normal operations at all. But when it comes to CPU heavy task like video decoding/encoding and gaming it does make a difference.