actually in postcanon michael would be having a whole moment over the fact that he really IS no longer his father's son because even when chuck was trying to end the universe he still EXISTED and so michael still knew what existence meant but now he's gone in every way that matters and michael has nooooo idea how to exist outside of him. and there are probably multiple of these moments because you don't learn a sense of identity in one afternoon. but anyway every time it happens i think adam just kind of sighs because he hates seeing him so upset and he's like listen. dude. wanna catch a movie with me or something? or go see a play or an orchestra or take a walk in a park or even visit another planet for a day. because while michael has no idea who he is outside of being his father's son and nobody else sees him as anything else either adam has viewed him as his friend for centuries and centuries and maybe that's not something you can base an identity off of but it certainly helps to know that there IS one person who doesn't affirm your bleak worldview and instead sees you as something all your own. but the thing is adam wouldn't just come right out with it because that would mean talking about his feelings so he'd just offer and offer for them to do anything else to get michael's mind off of the whole thing BECAUSE he's his friend and he cares about him and he's worried about him. and even without words i think eventually michael would understand