If you have a slope to climb, you'll likely need chains.
I have a Gravely on which I've used chains on 2 single turfs, dual turf without chains and now dual ag tires with studs. Haven't had much opportunity to use the dual ag tires with studs yet. Definitely have to use the chains for pushing the snow thrower or for pushing the snow plow in sloppy conditions if I want a full width (4') bite.
I did hang up a chain on one wheel because I didn't secure some excess chain and broke a link. After that, I used it with the dual turfs and took small bites with the snow plow. Didn't get a chance to use the new ag tires with studs last winter.
For this first winter with my JD 4010, it's parked in the basement of the carriage house, down slope from my driveway. The Gravely with plow and dual ag tires with the studs is in the carriage house at driveway level. NO WAY without chains would IT go up and down that slope to the basement area. Remains to be seen whether I'll need the JD and its loader and whether I can get it up the slope without chains.
Ralph