I want to preface this by saying that I think sam has completely legitimate reasons for being upset about the new avengers thing. for one, I doubt mr. “helped take down hydra in the government, civil war team cap” feels great about the avengers being associated with the us government. for another, sam has personal beef with john and valentina, one of whom is on the team and one of whom is their supposed boss.
that said, I think it would be interesting if in addition to the team name/the team in general, he and bucky were fighting about bob. how much does sam know about the void? probably everything tbh. I’m sure he would ask bucky about what happened with the void, and I don’t see bucky hiding anything. sam is his best friend, and he met bob like. five minutes ago.
so. bucky shares everything, and now sam knows that bob is the void. who killed people. who can’t control his powers.
would sam necessarily be upset that bob is roaming free? maybe not. he was on cap’s side in civil war, which included wanda, who was in a pretty similar situation to bob at the time. did some bad things in the past, imperfect control of powers.
sam advocated for steve to kill bucky instead of trying to save him during the winter soldier. he expressed general uncertainty about bucky being free of brainwashing in civil war. sam is a great guy, but he also has a strong practical streak that steve didn’t have (or was too blinded by friendship with bucky to acknowledge). sam is friends with bucky now, but he’s not friends with bob.
and honestly?? if I were sam, I wouldn’t feel great about leaving bob with the new avengers either. they’re working for valentina, aka the woman who caused this entire mess to begin with and already tried to use bob’s power once. and the rest of the new avengers aren’t exactly paragons of mental health or morality.
so. if sam doesn’t think the current bob situation is safe. and bucky isn’t willing to hand bob over. then… where does that leave them?
(I don’t think bucky would tell bob about this. I’m not sure he’d even tell the rest of the team about this. for one, not great for bob’s mental health. for another, it would take animosity between the capvengers and new avengerz from “who gets the copyright” to “very personal stakes because wtf do you mean he wants to take bob away.”)
this is a lot of words to say maybe we’ll get civil war 2.0 but this time sam is tony and bucky is steve and bob is bucky. anyway. I just think it would be an interesting point of contention between the two of them. even if it didn’t get to civil war levels.