MacOS 27 also uninstalls Rosetta 2 (if it was previously installed) upon upgrading. [0] "If Rosetta was previously installed, it is not automatically restored after upgrading to macOS 27.0. (163213094)"

Most applications now have native Apple Silicon binaries, although a handful still don't. You can check by navigating to the Apple icon > "About This Mac" > "More Info" > "System Report" > Software > Applications.

We had some printers with drivers who don't support Apple Silicon, thus they need Rosetta2, those filter files aren't displayed in the above menu, although you can run this script (papercut_rosetta_audit.sh) to audit your Drivers and their x86 dependence. [1].

[0] https://developer.apple.com/documentation/macos-release-note... [1] https://www.papercut.com/kb/Main/macos-rosetta-transition-en...