PS5 will crush the Switch this year. The more interesting question is whether it can beat Switch's peak year (a tall order but much more plausible than Switch keeping up with the PS5).
The race to watch is which will win FY 2022 in shipments? Nintendo's forecast was revised from 21 million Switch units down to 18 million. Sony's was revised up from 18 million PS5 units to 19 million.