I think the city life with everyone being in a rush and overwhelmed with work has decreased the amount of third places a lot.
I still see some local caffés where people chill and the barista also sits with them at times and joins in the conversation, or people talking while they're getting a haircut etc. but it's mostly a bit older people, young people seem to keep to themselves more.
Then again, I'm quite introverted so it's hard for me to engage in conversation to the point where I might not even notice that some place is a "third place"
It's sad how the whole world is going through a conservative nationalist phase, this isn't just a Canada thing but I've seen it in my own country and many other European countries and American states.