Amongst the Canadian PMs I've experienced, Chretien, Martin, Harper, Trudeau made the most impactful and positive policy changes (eg. legal cannabis, childcare) while navigating the country through the challenges of covid and Trump NAFTA renegotiations.
The negatives of his term are recent and largely tied to global issues being faced by many countries right now (eg. inflation) and so I expect future historians to hand wave these away.