So why would you want to keep using Rosetta if the app is universal? Most of the time, you won’t. See also: If you need to install Rosetta on your Mac - Apple Support I am guessing that it has defaulted to Rosetta, because that’s what you were previously using (when the app was Intel-only), and the message is letting you know that you may want to switch it over to native operation (by un-checking that box on each Office app). So you can now choose which way you want it to open. I assume that you’re seeing this message because the previous version was Intel-only and the new (current) version is universal.
There is a checkbox, “Open using Rosetta”, which is used to configure it. The following information is primarily intended for IT professionals who are deploying Office for Mac to the users in their organizations. Select the app in the Finder and do a “get info”. Office for Mac that comes with a Microsoft 365 subscription is updated on a regular basis to provide new features, security updates, and non-security updates.
If your app is “universal”, meaning it contains both Intel and ARM code, you can choose which way you want to run it. Similarly, if it is ARM-only, it will be run as native (again, because there’s no other option). If your app is Intel-only, it will automatically be run via Rosetta (because there’s no other option). “you can now disable the Rosetta emulator for Excel”. #1606: Apple's self-sabotaging App Store policies, edit Slack messages easily, WWDC 2022 dates.#1607: TidBITS 32nd anniversary, moving from 1Password to KeePass, pasting plain text, Mail fixes anchor links, RIP Eolake.
#1608: How to test Internet responsiveness, Wordle takeoffs, understand cryptocurrency.#1609: Apple Q2 2022 results, Apple's Self Service Repair program launches, escaping the cloud with a Synology NAS.#1610: Avoid hacked email scams, disable a known AirTag's alerts, battery technology tricks, industry support for passwordless login.