Expansion card questions: Under player turns in the rules reference, it says that one of the things I can do on my turn, is trigger…

Question

Under player turns in the rules reference, it says that one of the things I can do on my turn, is trigger “actions” on cards I control and on encounter cards in play. Such as attachments like obedience potion from the galactic artifacts encounter set which also happens to include reminder text that any player can trigger that action. My question is, can any player trigger the action on the wrapped in metal encounter card regardless of which identity it’s attached to? My doubt comes from the fact that I’ve seen a ruling that states that only the attached player can trigger the interrupt on death factor or counterspell and though those are not actions which would make sense as to why other players can’t trigger them, the ruling actually points to “you” rules being the reason. So I would just like to clear things up on how things are supposed to work.

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