Okay I sware I am the only on who saw this but Vision who was dead in infinity war helped tony stay alive longer!
At the moment when tony snaps you see just his face and the gauntlet like in the picture below but you don’t see if it’s his real hand like its a hand but its not tony’s hand!
Vision was dead, which means that for 5 years after they cut off old Thanos head and was sad Tony was able to use visions body. It was stronger than the iron that Tony’s suit is made of and so it’s clear that Tony’s armor in endgame is stronger because he could use the stones and not just blow up immediately and so it had to be visions hand since he’s strong enough to use the mind stone. Tony used parts of visions body and his hand in endgame is visions hand that tony is using as a gauntlet.
When Tony died, it was not the stone that killed him! It was vision hand corrupting his suit, but vision fought it back just long enough for tony to see peeper one last time. I don’t know if that makes sense how I said it but it makes sense though.
What do you guys think?????