First make tethering work without PM.
Use whatever tethering software you have or can get. For all I know, Canon may provide the best tethering software. If not, you may perhaps find useful info at the Tether Tools site
https://www.tethertools.com/ Software is on their product list.
Once you have tethering working and you know in which folder your tethering software puts images, point PM to that folder using Files->Live Ingest... PM watches that folder (the "hot folder") for incoming images. As far as I know, PM doesn't care how or why images arrive in the hot folder, which is why you can use whatever tethering software you please.