Destiny: Rising is a mobile game developed by NetEase, the developers behind games like Naraka Bladepoint and Marvel Rivals. While you can play Destiny: Rising on PC with the help of Emulators such as Bluestacks, it’s intended to be played on your mobile phone.
There’s no doubt that Destiny as a universe is rich in story, and anything that Destiny: Rising does will either support or contradict the years of established lore within the franchise. Hence, a clear understanding of where Destiny: Rising stands in relation to Destiny 2 will help get a better feel for the mobile game.
Are Destiny 2 And Destiny: Rising Linked To Each Other?

Yes, Destiny: Rising takes place in the same universe as Destiny 2. However, Destiny: Rising takes place long before the events of even Destiny 2. In fact, the setting of Destiny: Rising pushes its timeline even before Destiny 1, before the era of the Guardians began.
In some ways, consider this as a sort of prequel – where the events in this timeline shape up a lot of lore, and characters that we come across in the subsequent games.
Is Bungie Working On Destiny: Rising?
Yes, Bungie is working on Destiny: Rising, but at a limited capacity. They are responsible for the license as well as helping NetEase with visual references. However, the core development process of Destiny: Rising, which includes gameplay and lore, will be handled by NetEase only.
The good part is that, similar to every other game developed by NetEase, Destiny: Rising will also be free to download at least. However, NetEase, as a developer, is also known for its heavy microtransactions, with loot boxes and purchasable skins. As such, the post-download state of Destiny: Rising might not be as free-to-play as its pre-download situation.
How Is Destiny 2 Related To Destiny: Rising

If you have played Destiny 2, you must have come across the lore of how there was an event called the Collapse, which essentially ended the Golden Age of Humanity. The Witness, who was defeated in Destiny 2: The Final Shape, was responsible for the Collapse several years earlier.
After the Collapse, the Dark Ages started, but Guardians were still not present at that time, at least not in the sense of how we know them right now. Instead, there were Warlords, Ironlords, and Lightbearers who used the power of the Traveler to push back the various threats that infected the Earth during the Dark Ages and protect the remains of humanity.
Every character you come across in Destiny 2, including Lord Shaxx, Ikora, Zavala, Lord Saladin, and Saint XIV, can be traced back to the early days of the Lightbearers. Eventually, the Last City was built, and Guardians took form as Warlocks, Titans, and Hunters, as you see them in Destiny 2. However, in Destiny: Rising, you won’t play as the usual classes from Destiny 2, but rather as heroes of the Dark Ages.