Q:
About boon duration
Boons work off the Duration mod of whoever applied the boon.
If a random stranger who has 0% boon duration applies a boon to you, it will have its default unboosted duration. Your own boon duration has no effect, because its another player applying it, and it works with the applier’s stats.
If you apply a boon to another player while you have 30% boon duration, the boons granted to that other player will last 30% longer, no matter how much boon duration they have.
Healing utilizes the same mechanics, in case you’re wondering. Whoever is doing the healing has their Healing Power used in the calculation, not the recieving end.