An observation about the player Guardian as an Exo
So, as covered by the 6th Coyote lore tab, Human and Awoken Guardians come up with their own name, but Exo Guardians remember their names.
It's so consistent that Felwinter not remembering his name was considered a very strange event.
Now, this brings to us, the player Guardian, who everyone just calls "the Guardian." Probably because we're the shit and there's nothing else to call us because we haven't picked a name yet.
But if your character is an exo, they remember their name! They just won't tell anyone for no reason at all. Like we could be Shim-6 or whatever or Lupi-9 and nobody would ever know because we're a prick and won't tell anyone our name.
I know this obviously isn't intended, because Bungie can't account for whatever we want to call our character, but it is the end canon result that I think is funny.