Actually if thats really the median salary then Costa Rica is far less affordable than Toronto. Look at these prices on this website (albeit one of the first search hits that comes up) (1) I'm seeing 3-4 bedroom homes for at least $500k USD in some cases. If you can afford to pay that outright with no financing as a foreigner in Costa Rica, you can certainly afford a down payment in Toronto's housing market today.

1. https://www.propertiesincostarica.com/homes.html