Yeah, any place in a cabinet that would choke airflow to a XBS-X wouldn't even be able to fit a PS5 in the first place. The only situation where a PS5 would fit and an XBS-X wouldn't would be if the cabinet had really low shelves, but then they probably wouldn't be able to fit the majority of A/V receivers.
yep, basically PS5 (and PS4) design made it "fool proof". so as long as it fits, the airflow will be okay.
while with xbox series (and one) design, people can fit it into places where they didn't get enough airflow.