The PC version of Destiny 2 is not being developed by series' creator Bungie. The confirmation follows the other disappointing news that Destiny 2 PC will not offer dedicated severs either.
Speaking during a recent interview, Bungie's PC lead David Shaw called the development of the PC version of Destiny 2 an "interesting situation." Shaw explained that rather than Bungie "outsourcing" this version of the game, the company has developed a "true partnership" with Vicarious Visions, the developer behind the Crash Bandicoot N. Sane Trilogy as well as the Nintendo console ports of several Activision titles. According to the developer's Wikipedia page, it has not released a game for PC since 2000's Terminus and out of almost 100 games (excluding Destiny 2), just three have been developed for the platform.
Bungie apparently considers Vicarious Visions to be an "extended part part of the dev team" and Shaw also revealed that the developers exchange emails every day, along with regular video conferencing and sometimes the two developers will visit each other as well. Although "Bungie is leading the game" and this is "absolute [sic] a Bungie project" it has "crafted a strong partnership" with the developer and Shaw describes this bond as "phenomenally successful."
Bungie's reassurances are positive, but some PC gamers will still have huge doubts about the quality of the PC version. Gamers have all heard the horror stories of PC games that have been absolutely atrocious in comparison to their console counterparts. Notoriously, Batman: Arkham Knight was totally busted on PC and that game was also outsourced to another developer as the series' creator Rocksteady Studios focused on the console versions of the game, so it's not exactly like those fears are unfounded.
The dual-developer confirmation also comes after other worrying news about Destiny 2 PC was announced. For example, Destiny 2 PC will exclusively use Blizzard's PC gaming client instead of bigger PC gaming platforms like Steam, something which prompted concerns that the game's PC playerbase would be much smaller as a result.
The news that Destiny 2 will launch on PC after the console versions also hasn't helped matters. Yes, this additional development time could mean that the game will run smoothly on the platform (thanks to Vicarious Visions' work) but given that delays are usually issued due to troubled development periods, it's understandable that some fans aren't exactly bubbling with confidence even if all of the gameplay footage of the PC version so far has looked okay.
Destiny 2 is slated to release on PlayStation 4 and Xbox One on September 8, 2017, with a PC version to come at a later date.
Source: PC Gamer