For personal accounts, use Backup and Sync [1] which has selective sync, auto photos import to Google photos, and can backup the entire computer.
For corporate/G-Suite, use Drive File Stream [2] which gives fast on-demand access to personal and team drives, downloading files only when you access them.
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.
> Note—these settings won’t go into effect for your users until Tuesday, September 26th, when Drive File Stream becomes generally available.