It depends on the mask.
In any case - if someone wants to wear a mask, why should that be a concern of anyone? Seriously. On one hand, you say you don't want to get the vaccine, but on the other hand - chastise people who choose to wear a mask.
I'm fully vaccinated and boosted, but I don't judge people who choose not to. I also choose to wear a mask when I'm inside in a crowded location, but if there is no mandate to wear one and others don't - I don't judge them.
I haven't gotten Covid so far. I take precautions because I am a care-giver to my mother-in-law who is pretty old.