anonymous user, Thanks for sharing your thoughts. Currently, if any Office apps are open when Intune installs the app suite, the installation might fail. The app needs to be closed when we install it is a prerequisite to add Microsoft 365 app with Intune . Here is a link for the reference:
https://learn.microsoft.com/en-us/mem/intune/apps/apps-add-office365
For the solution 1 you provided, we can feedback to Microsoft Tech Community to request the new feature. Meanwhile, I will send your feedback to see if we can get this new feature in the future.
https://support.microsoft.com/en-us/office/uservoice-pages-430e1a78-e016-472a-a10f-dc2a3df3450a
for the solution 2, I think this can be a good choice for us.
Again thanks for your sharing and have a nice day!
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