I have a user with an older version of Outlook (2016) connecting into Gmail via IMAP.
Everything is working as it should, but as expected Outlook has created a massive PST file on the machine where it is running. I suspect there is no way around this and probably as close as one can get to using Gmail via Outlook (without using the Gmail interface).
The cause of this question is the user's concerns about having a PST file of their entire mailbox sitting on the PC (laptop) they are using. Is there any way to avoid this (creation of the PST file)?