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.