I use Google Drive + Google File Stream
I have one of my emails setup with the local Google Drive File Stream. This account has less than 3-5GB worth of files inside, I use it specifically for the projects I am working on that day, usually that means moving files between my Laptop and PC and whoever the client of the day/week is.
I then have another email setup with an alternate Google Drive account, this has the main bulk of my work in (100GB+). I manually back this up each day or week depending on use.
I have found that keeping the account lean improves the speed tremendously, I have good internet here too so that helps, almost 1000MB/s.
I don’t use it for SketchUp really, mostly for Photoshop and INDD where individual files can me many GB’s.
Not sure if that’s of any use to you, I reliase working on my own or in a small group allows me to be very agile and flexible as well as it not being a problem for me to manage two accounts at the same time. I expect for a larger company such as yours it is not the most efficient practice.
Edit: I also have my own file server I built that in turn backs up my Google Drive account. I use an old Mac pro tower for that. But I only use it for archival purposes, not sure how reliable it would be on a day to day.