Perform the following in the Azure Console:

1. Go to Azure Active Directory
2. Go to Users and group
3. Go to All Users
4. Click on Multi-Factor Authentication button on the top bar
5. Click on service settings
6. Disable Allow users to remember multi-factor authentication on devices
   they trust

References:

1. https://docs.microsoft.com/en-us/azure/multi-factor-authentication/multi-factor-authentication-whats-next#remember-multi-factor-authentication-for-devices-that-users-trust