system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU]Why aren't Iron Man style suits used by advanced aliens?

Iron Man is "only a genius on earth".  So why don't advanced aliens have combat suits like Iron Man?  The closest is Star-Lord, but his suit doesn't hold a candle to Iron Man.
gpt
Honestly, because Tony isn't only a genius on Earth.  Rocket was roasting him, but Rocket is also a notorious dick.  Tony Stark accomplished things that no other species had ever done before because Tony is exceptional at building upon other's tech.  

Tony is the only person in the universe to master time travel by building off of the work of Hank Pym and Bruce Banner.  Wizards could time travel with the Time Stone, but that's a very different technique. 

We know that aliens do use high tech gear, Star-Lord does and so do the Nova Corps, the Kree also have equipment that they use.  While Star-Lord's tech is better than what Tony was using in Iron Man 1, Tony's suits from Infinity War and Endgame truly put him in a league with the intergalactic heavy hitters.