Right, we’d like to display arbitrary fields on the user card, generated by WP, relating to the user’s account on the main site — like their homepage URL, and potentially other fields as well. They’re not intended to ever be user-supplied, even during account creation. They’re just inteded to be user-displayed. In our case it sounds like a custom “user” field is the best approach since it already includes display options for profile and card. And the user never sees a signup form anyway.
The edge case would be if you weren’t using SSO — the user would see those fields on the signup form, even though they’re not intended to fill them out. I suppose the workaround there would just be to hide them via CSS?
Anyway for our case, it sounds like we have our solution(s) here. Thank you!