Every Destiny 2 player has their own pre-season ritual, and some like to stack bounties to get an early start when new content drops. Bounty stacking gives you a small boost when a season or expansion starts by awarding you some Artifact mods and season pass XP early.
Destiny 2 | How to Use the Right Bounty Stack for Each Season
Stacking bounties may seem simple, but getting the most out of them takes time and planning. While every bounty works in theory, you need to choose the right one if you want to maximize your profits.
Below you can read how to stack bounties in Destiny 2.
In short, bounty stacking is the process of completing bounties but not turning them in until the next season or expansion. Since bounties don’t expire upon completion, you can hold on to them for a while and save them to unlock when they provide progress for a new season.