The ending of m(two) is so interesting to me because Vito's continuous selfishness is part of the reason he is left with the unknown fate of Joe. Now, I am not doubting that Vito cares about Joe; aside from Leo that was the one person he continously looked out for. But it has never been equal. Joe had given Vito EVERYTHING. Vito never even tried to live the "normal life", he faced the real world at the Dock and gave up after the FIRST crate he had to carry and he used Joe's name to move him up in the world.
Joe had ALWAYS included Vito in everything he was doing. Joe even tried to keep up on the news when Vito was in war to make sure things were going okay for him. Time after time again you can tell his plans were made with the idea of Vito apart of them.
When is came to the final Leo and Vito talk to the Planetarium; it was never a question of "what about Joe?" It was only in this moment and what Vito had to do about issue. We found out Joe refused to kill Vito even though he would have been given everything he ever dreamed of. He threw away his dream because it wouldn't be worth it if he had to get rid of Vito. Vito never ONCE made sure to check on Joe's safety. Never tried to include him or stick his neck out for him. The one person the narrative had established he cared for a lot, be never ever thought about how to make sure Joe was also taken care for.
Now I don't hate Leo. I actually like him. I don't believe Leo ever had a reason to lie to Vito. I believe Leo liked Vito, saw something in him. I think if Vito mentioned Joe, there could have been a conversation. Not saying it'd necessarily fix anything but maybe some context, something. Because I do think it's important to remember Vito IS being punished still. Vito DID do bad in terms of their code; but he was lucky to have Leo looking out. So Vito still needed to be held accountable for what he has done, but maybe he could have gotten a little more closure.
But also, going to a different thing, kinda with Vito and how he handles things. Vito could have moved on; but he didn't. He decided to grow old and alone and act like he had the worst life. When that just isn't true at all. Vito was given nearly every opportunity he had ever gotten in the events of the game. I'm not saying he's bad at what he does, Leo saw something in him. But Vito doesn't try to succeed. Idk. I think it's utterly fascinating Vito deciding to say woe is me and say the world had never treated him well and let things stay and end like that. That's why I utterly LOVE his "I deserved better" speech when he's killed in m(three). Now I haven't seen this in awhile, so it's just the faint memory so I won't speak too much. But that line alone makes my brain just implode!!!! It's so good and it I think truly wraps up Vito as a character!!!