Package installer requires Rosetta?

I have a package installer for my .app created with a sequence of commands (pkgbuild, productbuild, xcrun notarytool, xcrun stapler).

When this installer is run on a pristine machine, the user is prompted to install Rosetta first before being able to run the installer.

Is this expected behavior? Or am I creating the .pkg incorrectly?

Package installer requires Rosetta?
 
 
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