https://prorepfactcheck.ca/?fbclid=IwAR ... mJ4FYiOZNcPro Rep Fact Checker investigates claims made about proportional representation by opponents, proponents, and media columnists.
All information on this site has been validated for accuracy by two of Canada’s top electoral reform experts,
Dr. Dennis Pilon and Dr. Brian Tanguay
Personally, I'm undecided on how to vote on this issue however, a quick look at this site suggests they've got decent fact checking information here.
While they have a bias towards changing from FPTP, they're still academics who try to support their views with facts.
A good read before we vote.