No computer, on EARTH comes with licensed, paid for MS Office installed. Period.
They now ship the “apps” installed, but that doesn’t mean you own them. You no longer EVER own them. You subscribe and pay. Period.
If you want to use those trash applications, subscribe and pay them. If you want to not, Install LibreOffice.
Yikes- those are all local drives huh? Physically attached to the machine?
Were you using the “Combine storage” function?