Hello @adminER ,
Thank you for asking this question on the Microsoft Q&A Platform.
Unfortunately, it's not possible for users to store passwords in myapps portal. However, you can choose password-based SSO for an application (HTML sign-in). The article mentioned below provides more information about the password-based SSO.
https://learn.microsoft.com/en-us/azure/active-directory/manage-apps/plan-sso-deployment#single-sign-on-options
https://learn.microsoft.com/en-us/azure/active-directory/manage-apps/configure-password-single-sign-on-non-gallery-applications
Hope this helps.
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