Again, counterfactuals are always a little tricky, but it's almost certainly the case that the economic harm would have been significantly larger. Households' financial positions would have been impacted by a significant loss of income, which clearly was more than made up for by the government. It's the same on the business side, so there's no question that whatever was done helped support the Canadian economy.
Did we do the right amount? Did we do the right thing? All countries around the world tried various permutations around similar things, but it's very difficult, in my mind, to conceive of a world in which we came out of the pandemic in reasonably good economic shape and did not ascribe a significant portion of that to what was done by the federal government and provincial governments in Canada to try to keep us afloat in what was a tremendously turbulent time.