Squats are better for building the quads (especially Olympic and front squats) than deadlifts, and less taxing on the CNS.
I am currently squatting 6x a week, so that "tall people can't squat" gym bro babble is for the bushes.
Being "tall" is no excuse not to squat. I'd either switch to high and Oly squats (since you're clearing not a PLer that's competing) versus low-bar squatting. If your knee is hurting during squats, your mobility may be a limiting factor, or muscles in your quads or lower back (psoas, IT band) may be too tight and causing your knees to not track properly over your foot when squatting.*
*If you cannot squat to depth in front of a wall with you feet touching the wall without falling over, something is prolly too tight.
Problem may be difficult to diagnose without seeing, but a lot of people also don't do enough adductor work so their knees tend to buckle under load since those muscles aren't used to being worked properly. Turning both feet out to an angle of 15-20 degrees will help with your knees being aligned over your lower leg.
As with all things in the gym, do whatever the fukk you wanna do. (Hodgetwins)