The problem with this is that Drive File Stream is not available except as an EAP (Early Adopter Programme) which you can apply for but are given no guarantee or timeframe re access, afaik.

This means any migration to Google Team Drives (their Dropbox service for GSuite business) results in all staff losing all access to local file sync.

(And this is particularly a problem for non-Gsuite-Friendly file types like Pages, Keynote & too-complicated-for-Google-Sheets xlsx files which need to be downloaded, edited, renamed and re-uploaded.)

Not cool.