@N-M Thanks for posting in our Q&A.
Based on my research, organizations can use Azure AD Conditional Access policies to ensure that users can only access work or school content using Edge for iOS and Android. For more details, please refer to the following article:
It is suggested to try to create an app protection policy and add Edge as a managed app in it. Then refer to the following steps to configure conditional access policy.
Hope it will give you some ideas.
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