Same issue here, Ryzen 3950x and Radeon 5700XT.
48c idle outer temp
54-58c idle inner temp
55-60c load outer temp
65-75c load inner temp
I will note that the fan makes an effort to spin on system power on, but i haven't seen it on past that point and it doesnt really fully spin up, just a few revolutions then done
Temp checking done with IR thermometer, in addition to its probe attachment and been tested against other temperature tools for 3-5f range of accuracy at tested range.