My perspective is the leaner/stronger you go in, the more you will enjoy the hunt. Heavy packs and mountains work every part of you. Whole posterior chain will get its daily dose and then some, especially for us heavier gents.
I’d stick with your workouts and if anything, lower weights as you get closer to your departure. Best way to prep for mountain backpacking hunt is mountain backpacking. If you live in flat land, stairsteppers with pack help, but also actual stairs, ones where you can skip ones going up, ones that are stationary requiring full strength to raise to. I’m fortunate to have sheep mountains not far from my back porch, but far enough some evenings after work, with family, chor3s, etc., can’t make it to favorite trailhead for workout—so I stop at the high school stadium and simply hike the bleachers up/down for an hour. We don’t have any buildings over 2-3 stories locally, but if in a city, I’d expect a high rise stairwell would also serve well.
So I mix up high intensity workouts, strength training, and longer (much longer) hikes. As I get into summer hiking season, I quit doing heavy back squats as my legs get hours of weighted lunges 2-4 days a week. I still lift weights 4 days a week, but with steep mountain hikes no less than 2 days a week, squats leave my routine till after moose season.
As you get closer in time to your departure, you will seriously benefit from doing at least 2 consecutive days, and more the closer your get, of climbing bleachers/stairs with moderate weighted pack. I’d go a good pace to get heart rate elevated and go for as long as your schedule will allow.
You want to be able to spend hours climbing up, down, sidehilling, each day, day in and out, for duration of your hunt—and be fit enough to relish the suffering. I cannot wait for the suffering.