We notice most of IOS/Android that were enrolled and working well. when Windows Defender shows not compliant, User does not get Company emails or access to MS Teams. We had to delete the device and user start enrollment of mobile device, Is there other solutions as sometime the process is long?

Follow up yes we have conditional policy depending on Windows Defender on mobile as we need to protect the Company data.
Error on Compliant: Require the device to be at or under the machine risk score: