A minor feedback for the marketing page.
I’m an English speaker currently in Mexico City. The webpage first opened in Spanish based on my location.
It only took a few seconds to figure that I could change the language just above the footer, but my UI recommendation would be to put the location/language switcher next to the upper right sandwich (I’m on mobile) in a circle with the flag of my default country/language.
That would be much faster to find and have the added benefit of displaying how many countries and languages Stripe works in.