Thank you for reaching us!
For your query, I understand that you are facing a password setup issue on Mac devices.
The Microsoft Entra ID generates a temporary password as a standard security measure when resetting a user’s password.
Microsoft Entra portal does not provide an option to disable the creation of a temporary password and also there is no option to choose the password setup for the user and no option to skip changing the password when they first sign in.
However, you can set a password to expire or never expire by using the PowerShell commands for either an individual user or for all users. The relevant steps and information are here and also you can refer Set-AzureADUser password document.
OR
Password Reset via admin.microsoft.com portal and select the user for which you need to perform a password reset and uncheck the "Automatically create a password" option to set up the password for a user. Here you have other options like skipping "change their password when they first sign in" and getting sign-in information via email which you can see in the below picture.
If you’re using the Self-Service Password Reset (SSPR) feature in Entra ID, it’s important to make sure that your new password meet with the password policy. If it doesn’t, it will ask to create a new password that does meet the policy requirements.
I hope this answer helps! If you have any further questions, please feel free to ask.
Thanks,
Akhilesh.
Please "Accept the answer" if the information helped you. This will help us and others in the community as well.