The Professional Plus edition uses :
setup.exe /configure configuration.xml
This is critical. Because the filename includes 2019 (perpetual), it lacks the following: sw-dvd5-office-professional-plus-2019-64bit-english
Run setup in silent mode:
: To ensure the 64-bit version installs, you should run Setup64.exe from the Office folder rather than the standard setup.exe . The Professional Plus edition uses : setup
Don't just run setup.exe . Use the . Create an configuration.xml file to suppress reboots, accept EULAs, and remove previous versions. and remove previous versions.