Thank you so much for the detailed response! Would the process be the same with the multicam version? I think the materials are a little different. Also, what temperature and for how long in an oven? Sorry for all the questions, but this is completely foreign to me
Just warm like a good sunny day would have the leather, you can even apply Biwell or any beeswax and heat it or melt it in with a hair drier but I had best luck with a warm boot in the sun and just rub by hand to work it in the leather.
Snowseal is very good but it dries tacky compared to Biwell. This is OK for very wet snowy icy environments but add some dirt like glacier silt and it sticks to the snoseal. I prefer Biwell red, red is petroleum and green is silicone and on my boots, lasted the longest and soaked/rubbed into leather the easiest and deepest.
All boot wax is very similar, beeswax based, its the extra additives that makes the difference and with over-use, most will soften and ruin leather. I doubt you or anyone can tell the difference between Biwell, Nikwax, Snowseal, Grangers on boots other than from my experience says snoseal is tacky, its not a bad think just is. I prefer Biwell red and started using it back long time ago so its what I recommend. Use a boot wax once a year and always keep waterbase waterproof around, when the leather of your boots get wet during use in the hills, come home and apply some water base and it will soak in. You can use water base everyday if you have too. Always rinse off your boots first, get dirt, debris and mud off first.
Its doubtful the leather or feet will get very wet with those boots in wet grass or puddles even with out waterproofing. Flex points is where most leather and WPing will let water in, or hard ware points on soft leather.
Properly shrunk leather requires no extra waterproofing or goretex barrier but as boot manufactures found out, Gore Industries mighty advertising dollar has everyone thinking they have to had or need Goretex in everything. Do not want to get into leather beta, too much for me to thought process.
I would not think about it too much, get what ever is avail in your AO, wax and water based, apply it and have fun.