https://www.finder.com.au/destiny-2-no-recoil-pc
"As if mouse aiming wasn’t easy enough, project lead Mark Noseworthy mentioned something that’ll make pulling off headshots in Destiny 2 even easier for PC players: there’s no recoil. Read on for the full quote from Noseworthy on how recoil is being handled on PC for Destiny 2, and why the decision was made."
Project lead Mark Noseworthy;
"Yeah, we’ve thought about that quite a bit. Ultimately, we have one design for the game. And so, if you’re playing the Raid on PC or you’re playing it on PlayStation [4], it’s the same Raid. It’s the same experience. And we’re going to try and keep them as similar as possible, because hopefully we want this to be the best experience. We may look in a few places where weapons need to be handled differently, and we’ll treat them slightly differently.
For instance, there’s no recoil on guns on PC because recoil on the controller feels really good. ‘I’m firing, I’m firing, I’m firing, oh, I’m losing control of my gun a little bit.’ That feels great, especially with magnetism and all the magic in the controller that makes you feel it. With a mouse and keyboard, you don’t want the mouse moving without you moving it, so recoil doesn’t feel good, so there is no recoil on PC.
There are a couple of key ways we’re going to try and change it, make it so it feels native to that platform, because we want people to feel like Destiny 2 is built for PC."