My experience with late season tree stand or blind hunting is all about blood circulation. I have used 2000g Thinsulate boots that have left my foot freezing after 30-60 minutes of inactivity. So the insulation spec isn’t the end all be all. Getting warm blood to your feet is what will keep them warm. Mountain or hiking style boots must be tight fitting to provide the support needed. Unfortunately, that also means unless the boot is absolutely perfect fitting it will have some spots where it limits blood flow when not moving. When hiking and your heartrate and blood pressure is higher it will mostly overcome this and cold feet won’t be an issue.
Id look for into a pack boot style for 0F weather and whitetail hunting. Cabelas TransAlaskan or Cabelas Saskatchewan boots have been a game changer for low activity cold weather. I live in ND so put them to use plenty. Sure they aren’t as light as my Crispi Guides, but they will keep me in the outdoors longer when not moving. I am still using the TransAlaskan. They are loose fitting and the kinda like a hybrid between pack boot and mukluk. The ankle and lower calf area is loose fitting, but that coupled with the insulation is what really keeps the foot warm.
One other thing to think about if you think the terrain or style of hunting necessitates more supportive boots than pack boots. Is find a boot that provided the best fit and then combo it with boot booties or a blanket. When you reach your destination you can also loosen the laces. Zip on the over booties or wrap in a blanket. I utilize this method with hiking 1-4 miles to a glassing spot, then sitting at that spot for extended time not moving.