Do glass mousepads cause tracking issues with mice?

Yes, glass mousepads can cause jitter because the smooth, reflective surface gives the sensor fewer reference points to track movement, especially on older or budget mice. Cloth pads provide a textured pattern for smoother tracking. Newer high-end sensors handle glass better, but it’s not guaranteed, so stick with cloth for gaming or precise work unless you’ve tested your exact mouse on that exact glass pad first.