Mark Noseworthy just confirmed that Destiny 2 will have controller support on PC.
Destiny 2 Project Lead Mark Noseworthy was asked about controller support and aim assist for the PC version. He responded in a Tweet that is below that Destiny 2 plays great with a controller on PC.
Destiny 2 plays great with a controller on PC. If you want it to feel just like the console, you can. https://t.co/ghkoZvwZUl
— Mark Noseworthy (@knowsworthy) May 23, 2017
@knowsworthy Can confirm. I switch back at forth pretty frequently.
— Eric Osborne (@UrkMcGurk) May 23, 2017
Destiny 2 will release on September 8 on PlayStation 4 and Xbox One. The PC version does not have a release date but it will be available on Battle.net (retail and digitally) and not Steam.
Source: God is Geek