How to build a proper pkg-file that installs an app-bundle on Mac OS?

I know this question was discussed many times before, but the proposed buildkg-commands don't work for me on Mac OS Monterey. Here are two commands I tried:

sudo pkgbuild --install-location /Applications/MyApp.app --component $HOME/Build/MyApp.app $HOME/MyApp.pkg

sudo pkgbuild --install-location /Applications --root $HOME/Build $HOME/MyApp.pkg

For both commands I get an empty app-bundle in /Applications after installation and for some reason (possibly related to APFS copy-on-write feature?) the source app-bundle (used when building the package) gets empty too.