Customize app collections in the My Apps portal - Microsoft Support
https://support.microsoft.com/en-us/account-billing/customize-app-collections-in-the-my-apps-portal-2dae6b8a-d8b0-4a16-9a5d-71ed4d6a6c1d
WEBGo to the My Apps portal and sign in using your work or school account. Open a collection. You can edit only the Apps collection and collections that you create. Select Edit. Order the apps. Reset collection to default order. If you customized the Apps collection but don’t like the changes, you can reset it back to the default view.
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