It shouldn't be that hard to find. Google seems to occasionally send out a link to the security checkup tool that has a summary of all the authorized apps / log

It shouldn't be that hard to find. Google seems to occasionally send out a link to the security checkup tool that has a summary of all the authorized apps / logged in devices [0]. Judging from the other items I'm seeing there, authorizing any apps for reading email would likely be highlighted in red. [0] https://myaccount.google.com/security-checkup https://myaccount.google.com/security-checkup