In 2019-2020 Alberta had 1,595 hospitalized and 41 deaths. This year Alberta had 0 cases of lab tested influenza. That's how much of an effect the current COVID restrictions and renewed awareness of the flu vaccine had on the virus. I'm sure just wearing a mask when you're obviously sick would help close that gap.
So I would be very surprised (and see no indication) that doctors suddenly stopped doing standard diagnostics.
https://globalnews.ca/news/7606557/alberta-2020-2021-flu-sea...
I think wearing a mask when you feel sick and possibly masking up en masse for certain seasons of the year, if it has a measurable impact, is worth it. I really don't mid wearing my mask so if Nov., Dec., and Jan. I have to wear a mask in stores I really don't care at all.