I’ve gone from standard knobby mtb tires to the schwalbe winter tire with some studs to the schwalbe ice spiker pro, which is full of metal spikes.
I’ve had my only real crash just after getting the ice tires, when I was heading through the parking garage at work because those metal spikes get zero, and I mean z e r o grip on smooth concrete.
Otherwise, I’ve carefully built up to this. I ride the same route every day, and I’ve had lots of riding to get used to the handling and tires and whatnot. It’s taken some time to get the gearing and tires set up the way I like, but at this point, it’s like a motocross ride to work and back and I love it.