
Explanation:

Box 1: No
User1 is member of Group1 and has Device1.
Device1 is not Azure AD joined.
Note: Requiring a hybrid Azure AD joined device is dependent on your devices already being hybrid Azure AD joined.
Box 2: Yes
User2 is member of Group1 and has devices Device2 and Device3.
Device2 is Azure AD joined.
Device2 is excluded from CAPolicy1 (which would block access to Site1).
Box 3: Yes
User2 is member of Group1 and has devices Device2 and Device3.
Device3 is Android and is Azure AD registered.
Device3 is excluded from CAPolicy1 (which would block access to Site1).
Note: On Windows 7, iOS, Android, macOS, and some third-party web browsers, Azure AD identifies the device using a client certificate that is provisioned when the device is registered with Azure AD. When a user first signs in through the browser the user is prompted to select the certificate. The end user must select this certificate before they can continue to use the browser.
Reference:
https://learn.microsoft.com/en-us/azure/active-directory/devices/howto-hybrid-azure-ad-join
https://learn.microsoft.com/en-us/azure/active-directory/conditional-access/howto-conditional-access-policy- compliant-device