I'm back to working (though WFH until the 2nd/3rd week of January), but I didn't take a vacation over Christmas/New Year's. I took mine a week before Christmas, so I had a week off and then a few days off in the last couple of weeks for the actual holidays. Adjusting to going back to work the week of Christmas kind of sucked, since I had to answer a ton of emails from the time that I was gone, but it was pretty quiet after that.