Files and items modified by Power Automate or Power Apps in SharePoint will show as "Microsoft Power Platform" on behalf of the user. This change, starting mid-May to late September 2024, does not affect "Created By" and "Modified By" columns. Organizations should inform users about this update.
Applies to: SharePoint Online · Microsoft Power Automate in Microsoft 365
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).