In Destiny on console, there's a recoil that comes with firing each and every weapon. This recoil is built into the feel of the game and the feel of the pad in your hands. You get used to it and compensate accordingly.
On PC, recoil simply wouldn't work in the same way, so for Destiny 2 on PC it's been rejigged. You can line up a headshot, click a mouse button and hit without the reticle moving all over the screen. I found that I was much more accurate with a mouse and keyboard compared to a pad, which is a not entirely surprising revelation. But in the context of my relationship with Destiny, it felt almost extra sensory.