There's a 5800X3D under that
BeQuiet! Shadow Rock TF2 and it does go to the high 80's when multitasking and encoding via software, but I've never had throttling issues that I've noticed and recorded. During the torture test on initial setup, it never went above 88°C. Also, that is a 6900XT and it's a closed case which goes under the TV in, let's say, less than favourable venting conditions.
Point is: even if AMD says you need a 280 AIO to cool it, well, I just disagree with them based on personal experience. Much like everyone else in here is saying it, I just wanted to provide some personal perspective.
EDIT: Forgot to say! AM4 is dead! Long live AM4! So will Intel backport something to LGA1151? LOL!
Regards.