For what it is worth. I’m not as tall as you, I’m 5’11, but I have become more fond of front squats over the last year of training. Not that back squats were giving me problems, but I like to squat and deadlift in same week of training. I felt like the back squats were really hitting my lower back a lot and I just wasnt comfortable hitting deadlifts a few days later knowing my lower back was a little burnt. I switched to front squats and like I said have become a big fan of them.
Back squats and tall people equal a lot of the work in the movement being put on their lower back due to the fact that the bar is so much further away from the pivot point of your hips. Thats just the nature of leverage. Front and Zercher squats allow the bar to remain on a centerline of the body without requiring the lower back to work as hard(due to the fact that you are not bent over as far with the bar).
In addition, I feel that for myself I have a much easier time going through a deep full range of motion on the front squat safely and with near perfct form compared to the back squat, as I have my feet much closer together(shoulder width). Just my opinion.