An old test, but a more realistic one than any synthetic benchmark. In his opinion, all 3 phones failed. If anything the S24U failed first but only because the phone's thermal warning alert popped up and prevented any further gaming. Samsung did fix this in a future update AFAIK. The P8P lasted the longest despite the thermal warning, but also ran the hottest based on his temp checks. the 15 pro max ran the coolest.
Very different from what those benchmarks tell you right? Shocker
Even XM14 Pro with 8 Gen 3 reached insane 47 degrees C around the frames of the phone when its pushed to the limit. Xiaomi may have updated the software to throttle the SoC further since this test.