Whats the difference between secret and password managers?

Whats the difference between secret and password managers?

Are there fundamental underlying differences in how secrets and passwords should be managed?

I'm curious of the technical/cryptographic differences between secret managers and password managers are. If I get all philosophical about it the main difference to me is that secret manager's provide software so that other software programs can retrieve the sensitive information at runtime (but often still provide ways to persist the secrets) while password managers are single applications that retrieve sensitive information when a person wants to use it in some way.