Garrus actually learned about it from Ashley after an incident on the Citadel required some explanation.
[Ed. Note: I know it’s easy to make fun of Jenkins for bringing up Akuze right away, but almost everyone on Normandy 1 mentions it. And, his thing is nothing compared to that Kaidan dialogue. That conversation must be an absolute train wreck if you’re a colonist sole survivor.]
Where you derp around the galaxy (As Conrad) recruiting other failures to save the galaxy because you don’t know it was already “saved”.
A volus who made a series of bad investments and is now being chased by tax collectors, but he convinces Conrad they are terrorists.
A insane asari who has lived way past her own lifespan, and believes Conrad is the second coming of the Goddess. She keeps reffering to him as “The Goddess”
A cranky senile war vet turian who thinks Conrad is actually Shepard, and keeps making comments about the “good old days”
A hanar who cosplays.
Through your constant failures, you actually do uncover a threat and somehow stop it through a series of failed missions and horrific mistakes. Towards the end, you actually save Commander Shepard from the destroy ending of ME3.