It would be included in your total GPA but you would have to see how it affects some of the grade correction each individual schools do.
A masters does not help your GPA, a course based masters is probably minimally helpful for medical school admission, but may be beneficial down the line if that's your passion. I research masters would be helpful for the research experience. U of T does look positively at graduate degrees but generally for credit you need to finish them before you apply, ie mcmaster for their 1% bonus.
Graduate degree GPAs are not included (or really looked at) in both Canada or the US. AMCAS includes all courses in GPA, but if you go this route consider taking only bio/chem/phys/math courses because they have separate GPA for that, if that would be lower for you.
I just emailed them and they said this, I think what people were getting before as well: “I wish to inform you that candidates will receive the status of application by e-mail at the end of January 2021.”