Earlier quoted context omitted.
I've had good luck with Azure KeyVault.
Ditto. The managed service provider VS user assigned rbac was confusing at first, but now I am happy that I took the time to understand it. Also the azure clouds handling of vaulted passwords in log files from services like Logic apps) is absolutely bad ass.
This is particularly interesting to me. Is there a good doc page or blog post that you're aware of that covers these capabilities? I'm curious and would love to learn more.