See in the case of Brampton (and to a lesser extent Barrie) they are actually considered essentially suburbs of Toronto. Someone commuting from Brampton is a regular everyday occurrence that no one would bat an eyelid at here, Barrie is less common but still happens all the time (it's a 90 minute commute via train).

The places where people are really going to take a hit in Canada is in places like the Maritimes or smaller cities much further away from the major metros that people fled to during the pandemic and WFH being the fad. Tons of folks sold their Toronto / Vancouver homes and bought homes in these area's for essentially cash and are mortgage free but they drove the prices way up and anyone native to those places who bought a house and had to use a mortgage are going to be in a world of hurt when those prices fall back down hard over the next 2-5 years.