_________ You missed my point.
If a car is AVAILABLE with wagon wheels, as you mentioned above, then by all means buy the trim level that offers that size. But if it came originally with the more normal sized spec you also supplied, such as if you won it, inherited it, or bought it used because you're on a budget, then use it *with the sizes it came with*, and run the pressures *it calls for* on the door pillar placard - not what *you think it needs*.
The edition with the 19" wheels might have its suspension designed with alignment angles specifically for those size wheels, which means putting aftermarket 19-20s on the edition with - and designed to run with - only 16" wheels might adversely affect its handling.
In either case - the Camry with 16" wheels or the one with
19" - keep the tire pressures at what Toyota recommends on the b-pillar placard. Most likely, the one with 19" lower profile tires will have higher recommended pressures than the one with 16" - IE 34psi vs 32, as example.