Where is the local Google Drive folder

I guess that by "if there is a way to display GDrive on the Finder, just like where Dropbox is" you mean to display it in a sidebar, right?

To do that, just go to your home folder (/Users/[username]) and ... drag and drop Google Drive folder to sidebar.

I can't be sure but I suspect this may be due to Apple's autosave and versioning system.

So I found and tried this to disable it:

defaults write com.apple.iWork.Keynote ApplePersistence -bool no
defaults write com.apple.iWork.Pages ApplePersistence -bool no
defaults write com.apple.iWork.Numbers ApplePersistence -bool no
defaults write com.apple.TextEdit ApplePersistence -bool no
defaults write com.apple.Preview ApplePersistence -bool no

Then create then edit a new document multiple times, and it syncs fine.

There is metadata (extended attriutes?) or something (hardlinks?) on existing documents though, so they may need to be "saved as" under another name, and the original removed.

Initial results show that I don't have file sync issues anymore but I can't be quite sure if my fix is effective or I'm lucky, or an Apple update put things in order. Whatever, feedback would be helpful.

I opened a topic on Google Drive's support forum but with limited hope.