We have Nokian Nordman 7 studded tires on our 2019 Bolt. I was looking for Nokian Hakkapellitta studded when we were shopping for winter tires, but no one in our area seemed to be able to get them at the time. The Nordman 7 tires have worked out very well for us. My wife drives the car all through the Vermont Winters. Far better on icy roads: there are times on the winter where 2WD cars have real difficulty getting up our driveway. With these studded tires, the Bolt makes it up with no problems.
I've heard that studded tires do slightly worse than non-studded on wet, bare pavement. However, wet pavement is hardly the greatest wintertime challenge around here.
For those who see no need for studded tires, my first question is: "What kind of icy hills are you dealing with on a regular basis?" When I lived in NW Ohio, which is as flat as a board, I drove year round on all season tires. There were a few hairy situations, but things worked out OK. After our first winter in Vermont we started using un-studded snow tires on our vehicles (A Subaru Forester and an AWD Sienna). The difference was night and day from the all-season tires. With the Bolt we went to a studded tire, and found even better wintertime performance.