Stripe - Embeddable Form? Advice on API calls?

I’ve discovered an error with Bubble’s Stripe plugin that seems to prevent conditional states from being set after a purchase flow. Reverting the plugin back to the v2 version makes the flows work correctly, but it doesn’t save purchaser profiles or offer promo codes…

so, I’m looking for suggestions of custom built APIs. I’ve searched the Forums, and there’s a lot of plugin suggestions, but reviews leave me leery. Anyone have lessons learned on creating your own form, saving/send customer ids, saving/sending saved payment methods? Do you have plugins/combos of plugins that work really well? This is admittedly open ended, but I’m looking for inputs from the masters (of the forum).