Outlook Requires Password Every New Session - FSLogix

Outlook on our RDS servers (Office 2019 Standard Volume License) requires the user to enter their password every time they login to a new RDS session. If I login as a user excluded from FSLogix it saves the password and I don't need to re-enter it every time. I must be missing a simple setting somewhere.

Anyone with a similar setup got some best practice GPOs? It must be something simple in there I'm missing.