In the end this is the whole goal of something like stripe, or even something like Courier. Let your engineers spend more time on PMF and building cool new features.

On the flip side the absolute mess of a headache my day job had during their recent what 3+ hour downtime, stopping our paying customers from accessing our perfectly working application that they pay for, because early days devs decided to use Auth0 instead of a battle tested rails auth lib has made us prioritize refactoring auth0 out of our system.