No, it is not legal to camp anywhere in Canada. Camping is regulated and allowed in designated areas such as national parks, provincial parks, regional parks, and private campgrounds. However, there are some areas where you can practice wild or dispersed camping, which is camping away from developed campgrounds and facilities.
In Canada, wild camping is generally allowed on Crown land (public land managed by the government) and in some national and provincial parks with specific backcountry camping permits. Rules and regulations for wild camping vary by province and territory, so it is essential to check local regulations before setting up camp.
For camping in Québec, you can find designated campgrounds and information on wild camping regulations on the Sépaq website (Société des établissements de plein air du Québec) for provincial parks and the Parks Canada website for national parks.