I use REAL snow tires (Blizzaks) bought from Costco. Have an extra set of wheels, so easy to swap back to Summer tires at end of winter. When I went to change a few years ago, 2 studs broke of trying to dismount because they were mis-threaded and essentially welded into the hub. Car dealer changed/fixed and told me how it likely happened: When putting the wheels back on after tire mounting, the Costco mechanic likely put the studs into the air gun and drove them in without hand threading them first. Saves them 1 whole minute of break time for remounting 4 wheels.
Costco paid for the parts & labor, but after watching them work on other cars since, I will NEVER have anybody remove wheels from my cars, and take just bare wheels in for tire replacements. I see people trying to change flat tires on the road with 5 broken studs because they could not remove them without breaking them off. (Besides, the spare was flat anyways because it's been hidden in the car for 10 years and never checked).