Sunsetting was phased out for new weapons in February 2021. In short, sunsetting worked as follows: Every armour piece and weapon will have a max power level to which it can be infused to.
Does Destiny 2 have sunsetting?
In a new blog post, Destiny 2 developer Bungie has announced that sunsetting is being removed from Destiny 2. This system limited how long players were able to use loot they earned in-game in high-level activities like Nightfalls, Raids, and competitive Crucible modes.
Did Bungie get rid of sunsetting?
In a surprising twist, the studio announced that it was abandoning its sunsetting plans entirely, mere months after first instituting it. The reveal came as part of Bungie's anticipated State of Destiny 2 blog post from assistant game director Joe Blackburn.