I don't think the choice would be nearly so bewildering if they actually told us what the oaths were for each paladin. Ironically, even though you choose your oath at level 1, Pathfinder 2e has a perfect solution to this with their champion class. Good or evil aligned champions have tenets specific to them, and then based on whether you're lawful, neutral or chaotic you choose your subclass and a longer, more defining set of tenets and abilities.
And regarding onboarding, I'm willing to give BG3 q lite grace here because typically in games the tutorial is the last thing to get worked on and finished so it doesn't surprise me that it's rough in early access. Doesn't excuse the interface issues in the character creation screen though.
