It's easier than on prem. We usually implement Sharepoint. It takes about an hour usually to get permissions setup, and new files are scripted through power automate to get the right perms in special cases. 800TB on O365 costs far less than 800TB of spinning rust. RDS is provided by Azure AD, give a person a new comp, they sign in, it sets itself up, file access and all, using OneDrive. If using dropbox, SSO takes care of that. I think you misunderstand Google Drive, it's file storage, you don't install anything to it. Heavy lifting: editing videos, advanced adobe photoshop, as one of the girlfriends is working much more on her art, Running marine navigation software and chartplotting, monitoring the charge controller and all sensors, interpreting the radar. Coding in python/C get all the above to work. Never had an issue with setting a default program, sounds like a windows thing. You sound like I used to, unwilling to really give it a shot, because you're stuck in the past.