With the new Void sub-class changes Bungie are rolling out new bounties around the void status effects.
Such as this one...
Defeat combatants in Vanguard playlists by weakening them with Void.
So far the only way I can find to apply Weakness is using the Hunters Trappers Ambush
Trapper’s Ambush: Players can activate Quickfall in Destiny 2 to spend their melee charge and dive to the ground, creating a smoke cloud upon impact. Enemies caught in the cloud are weakened and allies become invisible. Also, Snare Bombs, upon attaching to surfaces or enemies, cause the player and nearby allies to become invisible.
Is this the only method Hunters have to apply Weakness?