Installing ms office 2019 pp installs on c drive but not on other driv

It's not especially meaningful or necessarily helpful to try to do that. And it's only possible if the installer is written to provide an option to specify the installation path.

Even if you specifiy a path on D: , most installable programs (truly portable programs are different of course) create and use many folders, files, registry keys, start menu entries and more on C:

Which proportion of the program is placed on the other drive depends on the structure of that program.

You would then need to consider the implications of drive failure and how you would clean up afterwards.