If you think you need winter tires, you probably do need them. I have driven year round with all weather tires in BTV without issue and my Subaru Legacy '07 performed flawlessly. And I am an essential worker and I have successfully negotiated thru a foot of snow and snow drifts. But that's me.

Winter tires have a softer compound than summer tires, they are 'stickier' by design. Some folks insist on studded tires, but don't fully understand that studded tires are only good for 0-10 mph, beyond that they are no better than regular tires and in fact slightly less effective due to road contact loss.

If you're buying a new (new to you or showroom new?) Subaru, best bet is buy a set of Subaru rims off Craigslist or FB Marketplace for $100 and find some decent used winter rated tires for $100-200. Swap out the tires and rims Thanksgiving and Easter when you have your oil changed. You'll have your winter tires on the cheap and extend the life of your all-seasons. That's how I do it, works for me.