Questions about passive skills

[Falex]

"Boost increases further if Archetypes of the same Lineage are present."

-Is this referring to the original Archetype of the skill or does this apply to a different Archetype that inherited it as well?

-If you have a Brawler with "Heat up", do you need an second Warrior or an second Brawler to get the extra boost?

-Does Lineage refer to the entire Archetype Tree (Warrior/Swordmaster/etc)

-Would a Seeker with "heat up" and a Brawler with "Heat up" get the extra boost, even tho they are different Archetypes?

-Just how much is this boost in addition to the base skill?

-Does having a third/fourth Archetype from the same Lineage boost it even further then the second one?

Thank you in advance for any answers

[Unforgiven]

-Is this referring to the original Archetype of the skill or does this apply to a different Archetype that inherited it as well?
>It refers to the same archetype lineage as the one that inherited it (if thief gets heat up, you need another thief)

-If you have a Brawler with "Heat up", do you need an second Warrior or an second Brawler to get the extra boost?
>always the same archetype lineage, so a 2nd brawler

-Does Lineage refer to the entire Archetype Tree (Warrior/Swordmaster/etc)
>Yes

-Would a Seeker with "heat up" and a Brawler with "Heat up" get the extra boost, even tho they are different Archetypes?
>No they wouldn't

-Just how much is this boost in addition to the base skill?
>From testing myself and several others testing, it's always the base value additive, so a max of 40% for heat up with 4x the same lineage.

-Does having a third/fourth Archetype from the same Lineage boost it even further then the second one?
>Yes, up to 20% for the crit/evasion and 40% for the atk/magic atk ones