ISSUE SOLVED Weird issue, when I open the game my computer's master volume drops from 100 to 50, and when the game isn't focused it'll stay there until I click another window. Afterwards the master volume will return to 100 until I focus Destiny 2 again, where it'll drop to 50. Actually a very annoying issue since I use Discord instead of Destiny 2 in-game chat (for various reasons).