I haven't stopped masking to avoid giving/receiving COVID to the best of my ability, but i noticed that during summer i can actually breath normally while outdoors with a mask on, and in winter it helps keep my face warm, so I've never had a reason to stop since starting and have no incentive to do so even if COVID goes extinct somehow
so not quite people related (tho cars, which are driven by people, are probably involved), but stench is definitely around one way or the other