First off "you guys" is not us forums users. I do not work for microsoft. I provide my time here freely to try and answer other user's questions like yours.
Microsoft has been setting MFA (multi-factor authentication) requirement as a security default. If you didn't want this then sign in here. (with your 365 account)
https://portal.azure.com/#home
then navigate to Microsoft Entra ID\Properties\Manage security defaults then choose Disabled
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