Really? It's fine usualy, maybe it heats up during PD fast charging but that's the same for all.
Discussion
It gets real hot for me during summers. If the ambient temperature is high (33°C-38°C) the phone does not cool properly. The case I guess obstructs a bit as well, but even without it the phone gets noticeably hot.
Ok maybe I have experience this at 32+C but it's so rare where I live.