I was in a vehicle ONCE with these (photo below) on the front and chains in the rear.
They actually worked for that type of snow we were in.
(It was the "sticky" snow) I can't speak for the heavy wet, slushy, or powder.


I guess the idea is that snow sticks to snow better.
When they are snow covered, the traction is there.
You can emulate this with your own socks.
Try wool socks over a flipflop or something and you'll see how you can walk easier on certain types of snow.





Sort of off topic...

One year, I had about 11" of snow in my driveway, that is all uphill and has a hairpin turn. I few pals were behind me in their Jeep, 4R and a few other 4WD's all with dedicated snow tires on.
I was in my Disco 1 with Goodyear Triple Treads (Discontinued). I could not make it up. They tried and could not do it either.
I tried it in reverse, and while it was a little hairy, I backed all the way up.
The rest tried it in reverse and no dice.

These are very similar, but not exact.
https://www.tirerack.com/tires/tires...red+All-Season