Is it possible to mix SSO and application username & password accounts?

For the implementation of Alloy which we’re discussing. The current expectation is that both SSE and the Devon CC will link their AD instances (in both cases its Azure AD) into Alloy – is this possible?
If SSE decide to use standard application based credentials (i.e. application username & password) is it still possible for Devon to integrate their Azure AD for SSO purposes?

From our perspective it doesn’t change anything, we need them to be on Microsoft online for the purposes of their Azure AD. If they can login via etc. being verified by Microsoft it will work, whatever they do behind the scenes won’t matter but their accounts need to be available to authenticate with the provider.

You can mix standard user accounts and SSO, you can even login with both at the same time.