I feel the internet is kinda going overboard with the opposite. Not every ancient relationship between 2 men was sexual and even if it was, bisexualism is a thing too. Say no to bi-erasure.

Iliad literally starts with Achilles arguing with Agamemnon over female slaves(Chryseis and Briseis) and who gets to keep who. And it was because of this, that Achilles refused to participate in the fighting from then on(also because he was OP as fuck and the game devs needed a reason to keep him on the sidelines, kinda like Superman dying in the Justice League).

And it wasnt till Patroclus(Achilles' friend/boyfriend) took Achilles' armor in order to help the losing greeks(raise morale thinking Achilles was fighting again) and then died to Hector, that Achilles went on his angry superman killing spree. Here is a rare video of Achilles after Hector killed Patroclus

https://www.youtube.com/watch?v=FpVnot2y-hk

Also ancient greeks wrote about their potentially sexual relationship but ultimately, this whole story was a myth. This was "ancient history" for the ancient greeks of classical Greece, something that happened almost 1000 years ago. And there was a "dark era" in between Mycenaean Greece(Iliad) and Classical Greece(Athens and Sparta bullshit), that we dont know much about.

History, as we know it(ie the writing down of actual historical facts) only became a thing during Classical Greece. Herodotus, the "father of history", sometimes was accused by his contemporaries of embellishing his stories, "content brain" was a thing even then.