At this point in time since so many of us have been vaccinated my feelings are if the anti-vaxers, non-vaxers and others who just don't care want to run around with their masks off because no one is checking and if they are unlucky enough and get very sick or become flaccid for the rest of their lives
that's their concern not mine. If a store requests a mask be worn, whether it matters or not because I was vaccinated, I will do it as a courtesy to those who work there whether it medically means diddly or not. It's simply courtesy. Sometimes what goes around comes around (no pun intended).