Both Pfizer doses and boosted. Got what I assume was the Omicron variant in mid-December 2021. They only way I knew I had it was that I tested positive. Ran my fastest mile time as an adult two days later. I was one of three in my family that tested positive during that time (multiple times) but none of us showed anything more than mild symptoms. Nothing out of the "oh it's winter" kind of thing. I'm grateful for the vaccines.
I want to provide a contrasting anecdote. A friend of mine, a farmer in Illinois got Moderna vax + Pfizer booster. 39 years old. Contracted covid before Xmas and got completely hammered by Covid. 10 days of agony. His sister is a doctor and helped him get through it, while the hospitals wouldn't take him unless he registered x degrees in fever. He was just shy below it. He had trouble breathing, the man was broken after a week of this. I was with him on the phone on a daily basis. Just before new years, his vocal chords were so ineffective, he couldn't talk from all the coughing. It was really painful to see him go through this and even more stressful in early days since he had breathing problems, that uncertainty of things getting worse is more painful than the physical pain. "Will I live the next day?".
I’m not sure if that’s the vaccines or your own immunity. Judging by your comment regarding running I’m guessing you are a healthy person. Which probably means your immunity is strong too.
Two counter anecdotes. Both omicron.
1. A person I know well is vaccinated and boosted. Yet had severe symptoms and fever for a week.
2. Unvaccinated person had no fever and very mild symptoms for 3 days. Fatigue, sore throat.
nobody should frown upon another person for leaving their house with covid to go run unless that run involves being in very close contact with others for an extended period of time. Which for most runs is not the case.
That depends on how many times you trip, fall, have a heart attack, get mugged or raped, use a public toilet, or any other random non-zero chance social and/or hospital interactions more likely to occur when you run outside vs. shelter in place.
But I don't have the impression anyone cares as much at this stage. It was more of an issue when we didn't have vaccinated folks and everyone was walking on egg shells trying to prevent our hospitals from imploding.