I save my files to a local drive and have my files backed up to Google Drive.
I use Google Drive for Desktop which is replacing Google Backup & Sync.
This backups my files to Drive in the background.
The file is currently locked by another user…
used to happen frequently but not so much now.
What I have noticed is that it can happen when, e.g. I have a model open and do a save as. If I then very soon after try to open the newly saved as file I will get the locked by another user error.
If I wait a little longer I can then open the file.
When it happened more frequently I would sometimes resort to killing the backup & sync process.