The architecture must match your device's CPU.
Going back is a fresh install: Android refuses to install an older build over a newer one. Uninstall the copy on your phone first — which erases its data.
Apps installed outside the Play Store don't update themselves, and Play Protect may warn even on a clean file. Get notified about new versions →Sideloading guide →
Microsoft Authenticator
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Microsoft Teams
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Microsoft Word: Edit Documents
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Microsoft Edge
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Microsoft Excel: Spreadsheets
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XBOX
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