Question about xbow desecration mod

There is a prefix mod on crossbows that says:
“Projectiles deal 85–109% increased Damage with Hits against Enemies within 2 m.”

It’s unclear whether this means within 2 m of my grenades or within 2 m of my character. Since grenades count as projectiles, I’m wondering if they behave like mines in PoE1, which didn’t cause you to take reflected damage because they were treated like minions.

Is this the case with grenades in PoE2? How do they interact with this mod?

Want to know this too.

Also is the damage multiplicative or additive?

Theres similar/same mods for bow and bows doesnt shoot grenades so by all this logic it must be your character, aka 2 meter pressence radius