@JoshR-3829
You can enable each user MFA individually. The licensing of per user MFA is entitled here.
When users are enabled individually, they perform multi-factor authentication each time they sign in (with some exceptions, such as when they sign in from trusted IP addresses or when the remembered devices feature is turned on).<br />By default, all users are set out as Disabled. When you enroll users in Azure Multi-Factor Authentication, their state changes to Enabled. When enabled users sign in and complete the registration process, their state changes to Enforced.
You can follow the steps detailed in this document for enabling MFA per user basis. - https://learn.microsoft.com/en-us/azure/active-directory/authentication/howto-mfa-userstates#change-the-status-for-a-user
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