Narrower tread is better in snow because it will float less at road speeds and sink down to more solid snow. One would think that at very low speeds, a wider tread would help with floatation, but not really. You'd have to go to tracks like a snowmobile or Snow Cat to get enough contact area to matter then. Wide tires are great in sand and mud, not so on snow, at least not at road speeds. I see super-wide-tired Jeeps wandering all over snowy roads, going everywhere but straight. No thanks.
I had some very lightly used General Altimax Arctic 12s in a 225/60R18 size leftover from my RAV4 Prime that, despite the much narrower tread, are the same 104 load range as the MY OEM 19" Contact Pros. I found some Enkei 18x8" wheels with a similar load rating that I used to mate the tires to my Y. (Here is a link at Tire Rack, though TR is discontinuing these particular ones:
https://www.tirerack.com/wheels/enkei-performance-victory-anthracite-painted
I really despise the super low sidewalls cars and SUVs are using these days and Tesla is a prime offender. Such tire/wheels are not your friend on any substandard road as I often find in central/northern New England with potholes, raised man hole covers, etc. especially with the somewhat higher curb weight of EVs.
Though the Arctic12s are much narrower than my OEM (now summer) tires, they handle fine, as they should since they carry the same load range. Steering response is a bit softer than the 45 profile Conti's, but not by much. (I don't really care for the touchy steering response of low profile tires anyhow.) The ride is a bit softer, but noisier, since we are talking about a winter tire. I never drove the 19", 255 Conti's in the snow, but the 225 Arctic 12s are great.
I know that there are much more talked-about winter tires out there in the Tesla community, but these Generals are fine. Most *any* winter tire is better in winter than the no-seasons and summer tires that are on cars otherwise.
My efficiency is a bit worse now, but that's probably due to the much colder temperatures rather than the narrower tires. This particular tire has a diameter about 1 or 2 percent greater than the OEM setup, and this now means that my speedometer speed is right on my GPS speed, whereas previously, the speedometer typically over-reported by about 2 or 3 mph @ 70 mph on the Conti OEMs, so there's that effect on miles of range reported as well.