Generally you are able to maintain distance pretty well. And you are moving quickly in open air. Some people keep a mask under their chin and pull it up while passing, which seems more reasonable. I also see people wearing masks while driving alone in their cars. I advocate for masks, and have given away thosands of KN95's that I imported, but I think in some cases the masks are serving mostly as a way to feel some control in this out of control world that we inhabit

It depends on the exercise. They certainly make cardio harder, but when I lift I’m not breathing so rapidly that masks are a noticeable issue.