To be honest when I am outside breathing freely circulating air I never worry about COVID at all, don't wear masks outdoors for this reason. I am sure there is some % chance of getting COVID from someone I am sharing a hiking trail with but after 3 vaccines and with quasi-infinite dilutional volume for their expired air, it is surely fairly low.
Sharing indoors spaces is a different calculus, but I don't think COVID should make you feel as if you cannot bike/hike/walk the dogs.