The bike paths in Quebec and throughout the province of Quebec are pretty extensive and I can tell you that they are definitely well used. As I was heading west out of Quebec City there were thousands of people out on bikes, roller blades or just walking. I found out later that the Quebecois people take their vacation at the same time, something like 30% of the city is on vacation in July. Note-Head west to east to take advantage of the prevailing winds in Canada. I was heading west-for two days, 90 miles each day.
The bike paths in Quebec are great but do not stray from the bike routes because you will find yourself on some pretty rough roads with gravel shoulders or no shoulders and heavy traffic. I’ve read that roads across Canada leave something to be desired. I have to also say that some of my more difficult and tedious riding was on bike paths, up and down curbs, avoiding pedestrians. My preference is a big wide shoulder which I found when crossing back into NY state. My best stretch was heading to Plattsburgh in the dark with very little traffic and then to the ferry to Vermont on a deserted smooth bike path. Worst was definitely coming out of Quebec with no shoulder, a road that was less a road than a jigsaw puzzle of asphalt, plus high speed traffic whizzing by. Also coming into Burlington on Rt. 2/7 or any of these fast food, strip mall sections that exist everywhere, where bikes are definitely not welcome.
I need to spend a bit more time there. I was sort of disillusioned, thinking it would be like France, which of course it is not. I had a hard time with some people, my limited French not helping much there in Quebec as well as it had in France, but there were so many others who were eager to talk, help with directions, and in one case invite me into their home to sit out a really fierce storm.