There are a few cases where you can gain a damage increase to attacks or spells which cause multiple types of damage, such as Dangerous Sorcery and Meteor Swarm, or Precision damage and Alchemist bombs, or Precision damage and a Flaming weapon.
What type of damage is the extra damage in this case? I would've expected it to be the first damage type listed in the effect causing the damage but as far as I can tell there is no actual rules support for this.
I could believe that Dangerous Sorcery is untyped damage (though it is a bit weird for it to be able to damage things that are otherwise immune), but Precision damage is pretty clear:
Quote:
Precision Damage
Sometimes you are able to make the most of your attack through sheer precision. When you hit with an ability that grants you precision damage, you increase the attack’s listed damage, using the same damage type, rather than tracking a separate pool of damage. For example, a non-magical dagger Strike that deals 1d6 precision damage from a rogue’s sneak attack increases the piercing damage by 1d6.
Some creatures are immune to precision damage, regardless of the damage type; these are often amorphous creatures that lack vulnerable anatomy. A creature immune to precision damage would ignore the 1d6 precision damage in the example above, but it would still take the rest of the piercing damage from the Strike. Likewise, since precision damage is always the same type of damage as the attack it’s augmenting, a creature that is resistant to non-magical damage, like a ghost or other incorporeal creature, would resist not only the dagger’s damage but also the precision damage, even though it is not specifically resistant to precision damage.
Does Precision Damage count as every type of damage that an attack deals? The rules definitely already allow for it to count as Precision + another type of damage minimum, so damage can definitely have multiple types. If it doesn't, then which damage type does it count as? Do you get to choose?
If it does, how does this interact with some of the more ambiguous damage types, such as persistent damage, or splash damage? These things definitely fall under "the attack's listed damage" as they are specifically referred to as the listed splash damage, or the listed persistent damage. (I know some people argue that persistent damage isn't a damage type, not hear to debate that point so just look at splash damage which isn't a condition. Or imagine instead that a Swashbuckler with a Rogue Dedication does a bleeding finisher (which is certainly both a damage type and persistent damage) and adds 1d6 sneak attack.)
I'm not necessarily expecting a definite answer on this because I don't think the rules are clear enough to come to any certain conclusions, but I would like to know if I missed a rule somewhere that clears this up.