Timely post as I am getting ready to take my Ebike out on groomed snow trails...
Love my M2S All Terrain bike after a year of use. It has a 1500W mid drive motor and I have both 29" x 4.5" fat tire wheel set and a 27.5" x 3" wheel set for it. Have about 3K into everything. The fat tires are great for snow and beach sand, period. They are loud, raise the bike up a few extra inches, counter steer like crazy and use my battery up pretty quick (about 50 miles) since they are used in sub freezing conditions with assist level of 2 normally. I almost got rid of the bike because of the handling and 'features' of the fat tires. The 27.5" wheels are head and shoulders better under 90% of riding conditions. They allow the bike to feel and handle like a regular MTB and don't limit anything, except snow and beach travel under a few conditions. I also just about double my battery life and can run at assist level 1 most of the time. I hated the throttle and disabled it, too much power and kind of 'jerky' on and off response. Even got a cart for it, a Craig's list freebie kid carrier with full size bike wheels and a weatherproof top.
Never did actually use it for hunting but a lot of scouting blind set up, and trail riding was done with it. I have a few places where it's a 45+ min walk to my spot but my style is 'still hunting' so the bike stays home as soon as the season opens. It would cut down my approach time to 15 mins but not willing to give up hunting my way in and out to save the walk. Besides, I can always use the exercise.
If I was using it in the desert or where there were thorns I would definitely put liners in the tires or 'goop'. I thought that my Ebike would be used for actual hunting but it wasn't necessary for me. It is a blast to ride in winter on snowmobile and groomed bike trails and great to just ride in town and in the woods. My visions of cruising out in the dark to hunt never really materialized.