If you’re using too much low back, it may be due to more than just body structure. I will admit some are much better suited to squats than others. I’m 6’4" and have never felt incredibly comfortable with squats. It won’t be the end of the world if you stop doing them, but you might not give up just yet.
I used the same arguments when I first started squatting again. But I found something that really helped, and also drastically limits forward knee movement. Box squats. You might try working some light box squats, working strictly on form, making sure your posture, and the position of your knee, is good. Then slowly work up in weight. Who cares if you never hit bigger numbers, its all relative anyway. Improve you own numbers, and if you feel the need add leg presses, step ups, whatever to supplement.