Install MS Office 2021 on Zorin OS 16

[Mr_Magoo]

Have you tried installing it via PlayOnLinux?

3 Ways To Install Microsoft Office On Linux 2023 - Technowizah

Also, not to steer you away from MS Office, but have you tried the alternatives? LibreOffice (which is what I use), Open365 (browser-based), FreeOffice, MS Office Online (browser-based), WPSoffice, Feng Office, Calligra Suite, OnlyOffice, OpenOffice, etc.