Google multilogin should never be used for anything. It sucks and is broken and at some point it will screw up and sync your chocolate into your peanut butter and you'll never get it sorted.
Much better solution is to use two different browser profiles separately logged into those accounts.
If you're a G suite user you'll find a lot of weird corner-case situations where you simply cannot use various services and features elsewhere in the Google portfolio. Want to setup a family account in G Music? Not supported if your account is G suite. Want to check your calendar with the new Google Home? Can't be done if you are a G Suite user. The list goes on and on. It's the weirdest thing, because you'd think Google would want to cater to their paying customers first.
Google's multi-login approach is in the awful middle ground of "works some of the time". At this point I just use multiple browser profiles rather than waste energy on the edge cases that they have failed to support. Having some sites/service only support the first logged in account (e.g. Google Music, Drive desktop client) is really annoying.
Another issue that drives me nuts with Google Drive is that it crashes Lightroom if I keep LR catalog in Drive folder. I either have to shutdown Drive while working in Lightroom or move catalog out of Drive folder.
I don't think I ever had crashes when I kept catalog in Dropbox folder. Once my subscription runs out, I will probably try out OneDrive or go back to Dropbox.
That's a problem of their Google Drive Desktop Sync program. I also hated it (it also sucks a lot of CPU). Since switching to Insync for desktop synching all my problems with GDrive are gone. Google should buy this tiny company for their great work with GDrive.
The default Google Drive client is pretty basic and limited to one account at a time. Google probably has not prioritized desktop software like Drive. There are third party clients that provide more features like Syncdocs http://syncdocs.com which can sync multiple @gmail accounts to Google Drive.
>Why, Google, why?
Google probably prefers you to keep one account for targeting advertising, plus each Drive account comes with 15GB free space, so multiple Drive accounts give you more free space.
Signing out of a single account leads to all accounts being signed out. Gmail was launched 12 years ago.
Why, Google, why?