Packs are like knives and boots and camo.....once you get into it there is a use for different types. I used to use a fanny type pack with shoulder straps for whitetail treestand hunting, but found I tend to haul too much "stuff" with a decent sized pack. The old "what if" syndrome in action and then I was hauling gear around I rarely if ever used. Even when I am still-hunting larger tracts of public land, I want to carry less and stop being a pack mule. So a couple years ago I bought an Alps bino harness with a box call pouch, which I turned into a whitetail pack for using my climber. I added a second pouch for my rangefinder and then pared down everything I was going to take as minimalistic as possible. Last fall I found myself using it a lot more for every type of bowhunt becaue it doesn't weigh much, I can shoot with it, climb with it and it stashes easily on stand. I added a small rechargeable flashlight and folding guthook knife on one of the side straps, but the whole unit is very compact and easy to use with any type of layering.
On the flip side, I bought a used ebike this past spring to scout, check trail cams and potentially hunt. Ebike users are in constant search of the best manner to haul a bow and arrows, being somewhat divided between a pack and some form of bike-mounted unit. I looked at the bike mounts and went the direction of a backpack bow carrier with an Alps Pursuit pack from the AT classifieds.
This way I can carry my bow and quiver (fits on either side), plus take a vest or jacket along in the larger main pouch. Once at my stand, I can hang it from a Third Hand utility belt, screw-in bow holder or set it on the seat next to me in a ladder stand.