https://www.bleepingcomputer.com/news/microsoft/microsoft-365-gets-native-app-support-on-apple-silicon-macs/

Microsoft has started rolling out new Universal versions of Microsoft 365 apps with native support for both Apple Silicon and Intel-based Macs starting today.

After the update, Outlook, Word, Excel, PowerPoint, and OneNote will be able to take full advantage of the boost in performance brought by the new M1 processors to the latest MacBook Air, 13-inch MacBook Pro, and Mac mini.