Answered question
Videotron supports AlertReady for iPhones, but how about Fizz?
Yes they do! I got the alert last time there was an emergency alert test!
Other answers
Yes, the last test came in on my pixel 2. There was a post in the forum where many people confirmed the successful reception.
Yes they do on both iPhone and Android... the Android part is presuming you didn't screw up your APN (what a joke that OS.)
I saw it once a few months ago. Nothing since. Guess that's a good thing...
Thanks for your answers!