If you're vaccinated and aren't sitting right next to someone for a couple minutes straight, the risk outdoors is extremely low. It seems almost impossible to be exposed to the viral load required to cause an infection, other than a prolonged close contact, if you're outdoors and then factor in the protection a vaccine offers. I wouldn't worry.
Outdoor mask mandates are over in other countries with decent vaccination rates (Israel, the UK). You're going to see us follow suit soon.
I do still wear one outdoors if I'm around other people, even if I just briefly put it on to pass someone on a narrow hiking trail, but I do think it's probably totally unnecessary for a brief contact that lasts a couple seconds outdoors.
I'm interested to see how the summer goes. I live in a small town thats inundated with tourists every summer (impossible to maintain social distancing on the sidewalk many days). Last summer we had signs up that said "Congested Area, Please Mask" and the town also put out free mask stations several places around town.
That being said Fucker Carlson is a menace to society. I may wear a mask outdoors forever just to spite him.
I don't think Minnesota ever had an outdoor mask mandate. I think it was just indoors and on public transportation.