Related to this bug is the fact that you need to manually add the Google email, contacts and calendar even though they are already configured in gnome-online-accounts. The expected behaviour is that you add your gmail address in gnome-online-accounts, and - automagically - the IMAP account, the contacts and the calendar(s) are configured in Evolution. This is how it works in Empathy.
Related to this bug is the fact that you need to manually add the Google email, contacts and calendar even though they are already configured in gnome-online- accounts. The expected behaviour is that you add your gmail address in gnome-online- accounts, and - automagically - the IMAP account, the contacts and the calendar(s) are configured in Evolution. This is how it works in Empathy.