Glad to hear that you found a work around.
They didn’t have the tutorial when I started, and I can’t remember if the first Primarch slot was locked by default, but since the only tangible way to get gold is with a Primarch, it seems odd that they haven’t provided a way for you to unlock the first slot.
(Before anyone calls me out, I we all know you can get gold by raiding other Atlas players in Main Game, but since there is no way to tell if, or how much gold the enemy has before the flight, it’s not a viable way to get your first 10k.)
I’m sure you’ve found the Atlas Quests by now. The number of Atlas quests is quite limited, but you’ll get more gold, rider gear, and other Atlas goodies.
Pro-Tip, decide which full set of gear you want first (Fire, Wind, etc.) before you do the Rider Gear Quest. You’re not given much opportunity to decide when it comes time to choose, so have your selection in mind. And like season rider gear, it’s not upgradable, so you’ll outgrow it in time.