[All hosts] (unified manifest) Correct support for platforms that aren't directly supported

[samantharamon]

• Clarifies that add-ins that use the unified manifest for Microsoft 365 must be a published AppSource add-in to run on platforms that don't directly support the unified manifest.
• Moves the information about platform support to its own section in Office Add-ins with the unified app manifest for Microsoft 365.

[learn-build-service-prod]

Learn Build status updates of commit 9004e51:

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docs/includes/non-unified-manifest-clients.md	✅Succeeded	View
docs/outlook/compare-outlook-add-in-support-in-outlook-for-mac.md	✅Succeeded	View
docs/outlook/outlook-mobile-addins.md	✅Succeeded	View

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[Copilot]

Pull Request Overview

This PR clarifies how add-ins using the unified manifest for Microsoft 365 run on platforms that don’t directly support it and centralizes that information in its own section in the unified-manifest overview.

• Adds “Support for add-ins with the unified manifest” sections to the Outlook mobile and Mac docs.
• Introduces a new “Client and platform support” section in the unified-manifest overview.
• Updates the shared note include and corrects a See also link in the add-in commands doc.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
docs/outlook/outlook-mobile-addins.md	Inserts unified-manifest support guidance for Outlook mobile
docs/outlook/compare-outlook-add-in-support-in-outlook-for-mac.md	Inserts unified-manifest support guidance for Outlook on Mac
docs/includes/non-unified-manifest-clients.md	Updates the shared note and adds a link to the unified-manifest overview
docs/develop/unified-manifest-overview.md	Adds a new “Client and platform support” section
docs/develop/create-addin-commands-unified-manifest.md	Fixes the See also list and updates the unified-manifest link

Comments suppressed due to low confidence (1)

docs/includes/non-unified-manifest-clients.md:3

• The line starts with -> instead of a proper blockquote marker. Replace -> with > to maintain correct Markdown blockquote formatting.

-> When the app package that contains the unified manifest is deployed in [AppSource](https://appsource.microsoft.com/) or the [Microsoft 365 Admin Center](../publish/publish.md) then an add-in only manifest is generated from the unified manifest and stored.

[learn-build-service-prod]

Learn Build status updates of commit df07566:

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docs/outlook/compare-outlook-add-in-support-in-outlook-for-mac.md	✅Succeeded	View
docs/outlook/outlook-mobile-addins.md	✅Succeeded	View

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[learn-build-service-prod]

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docs/outlook/compare-outlook-add-in-support-in-outlook-for-mac.md	✅Succeeded	View
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docs/outlook/compare-outlook-add-in-support-in-outlook-for-mac.md	✅Succeeded	View
docs/outlook/outlook-mobile-addins.md	✅Succeeded	View

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