The most recent MBPs were being throttled after mere seconds of 100% CPU due to the poor heat management and poor fan profiles; Linus Tech Tips was able to go from sealed box to throttled CPU in under 20 minutes without even trying. A firmware update to address the fan profile issue improved this but it still has issues.
The MBPs were not really designed to handle the heat of an i9
I don't think today's MBP's run quite that hot.