We did learn it, but Bungie did a terrible job at storytelling. I can sum it up for you: Primarily the Vex want to transform the universe into one giant clock. Everything controlled, with one single mind. They are in our system to study the Light and the Dark. Makes sense so far. To efficiently do that, they created the infinite forest. Not only to find ways to defeat us, they are also trying to find ways on how we can defeat each other (light and dark). We know the Vex have already been able to take our light ( rip Saint 14), but it took them way too long to do so. Now with the awaking of the traveler and the release of the pulse wave, Panoptes was able to crack the code. This was the reason he was able to sense Segira at the beginning. Imagine, Panoptes figured out a way to take our light, he found the key to wiping us from this universe. The only one stopping him to get access to other minds? Osiris. So Panoptes was trapped within his own forrest. Of course he was working on ways to get free, thats why we had to help. Then we killed him and ultimately saved ourselfs. Hope that short summary clears things up.

Bungie always lies. They even claimed that the dumpster fire that is Curse of Osiris was an ‘epic adventure with story & strikes,’ despite there being only 4 story missions & the strikes being basically 2 of those story missions. They are a pathetic, incompetent, greedy, shady company that should never be trusted.

I drink to forget that DLC.

Hmm, I'm still waiting 2 and a half years later for them to explain how the Traveler is alive when they killed the Traveler in The Taken King. So get in line, lol.

Do the words “simulated future” mean anything to you? Because, as one of Osiris’ reflections told us, that is exactly what they are attempting to do with not only the system, but likely the entire universe. Shaping it so that nothing exists but the Vex

We know exactly what they want... We learned that in like Destiny 1 dude

Thought it was to create a future where they took over everything? Since thats what the future looks like when we time travel to it. And im pretty sure thats what osiris tells us isnt it?

The whole, "The Vex are planning to turn the solar system into a giant prediction machine." Wasn't telling enough?

Did you not pay attention? Might wanna replay CoO.

Well, we’ve known for a long time that they want to convert everything into machines until the collective is the only thing that exists. We just don’t know why they are here specifically.