When you apply a gameplay effect, you can apply a gameplay cue
Let’s you applied
OnDamaged GE (let’s say its Fire Damage)
OnDamaged->Apply Gameplay Cue to Target → OnCatchFireCue
This being said some of the cue’s sometimes not enough, it can get complicated. You can also make gameplay effect on target run another ability. If that would be the case, you can just add a tag with effect that runs another ability.