Other issues or features related to Microsoft Edge on iOS
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I have several users where on their personal devices, they are not able to access Microsoft forms. It appears to be blocked by a conditional access policy in Entra. That all makes sense until it is blocked on safari on the iPhones but then not blocked on Edge. Is there a policy condition that I am not seeing that allows/disallows specific browsers on devices?
Other issues or features related to Microsoft Edge on iOS
AI answer
Yes. Conditional Access can effectively allow or block access differently by browser on iPhone because browser support for device-based and app-based controls is different.
On iOS:
That means if the policy protecting Forms includes controls such as:
then Safari on iPhone can be blocked while Edge is allowed.
A practical way to confirm this is:
Also note:
It sounds like the policy is not actually blocking Safari specifically. More likely, the CA policy is requiring something that Edge can satisfy, but Safari cannot.
On iPhone, this can happen if the policy is set to Require app protection policy or the older Require approved client app. Edge can meet that requirement when the user is signed in with the work account, but Safari cannot, so you end up with Safari being blocked while Edge works on the same device.
Check the failed Safari sign-in in:
Entra admin center > Identity > Monitoring & health > Sign-in logs > open the failed sign-in > Conditional Access
That should show exactly which policy blocked it. Then compare it with a successful Edge sign-in from the same user/device.
Especially look at the Grant controls and see if Require app protection policy is enabled. That would fit this behavior pretty well.