Squats are powerful medicine, but they can also tighten up the hips pretty bad if you’re not careful. Tight hips = bad climbing technique = you don’t climb so good.
If squatting is part of your training program, make sure you focus on the depth of your squat (your range of motion). Do drills, correctives, foam rolling, and stretches that help you squat deeper. And unload the bar enough so that you’re always (or almost always) squatting with your full range of motion. As a climber, your squat depth is far more important than how much weight you have on the bar.