I wonder how the RWD option performs in snow. Conventional wisdom is that 4x4 is required for good snow handling, but my experience of a FWD Nissan Leaf is that it handles OK in snow, and I put this down to the weight of the batteries. There is only a £3,500 price increase for AWD over RWD so that makes it tempting (but one has to offset the range reduction).
Tyres are the biggest factor in driving on snow. Weight might help with traction/grip, but it’s a double edged sword, you’re carrying more momentum if grip does let go.
AWD will also get you better traction, but braking will be as terrible on snow as any other car.
My own RWD ID.3 was pretty poor on snow over the winter on the factory tyres, but a pair of snow socks had it almost unstoppable.
Winter or all season tyres are what I use, and the latter are what I’ll fit when I’ve worn out the factory tyres that came on the car.