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In order to uninstall packages you need to go to

/Library/Receipts

where there should be a list of installed applications. By invoking

sbom -fls  some_app.pkg/Contents/some-path/somefile.bom

you get the list of installed files and their corresponding paths. As such, a command like

sbom -fls some_app.pkg/Contents/some-path/somefile.bom | (cd /; sudo xargs rm)

might be used to delete them accordingly.