This popup has been the bane of my existence for 18 months:
Google couldn’t sign you in: This browser or app may not be secure. Try using a different browser. If you’re already using a supported browser you can try again to sign in.
I hope this post helps someone else. I tried many things to resolve this, including:
– Tweaking my Internet Explorer settings within Microsoft Edge
– Setting FireFox as my default browser based on a single Reddit comment
– Spending a long time procrastinating by searching for information about how to make Outlook open dialog boxes in other browsers, then tweaking my default app settings to no avail
What finally worked was adding a password to my existing Zoom account. I signed up for a new Zoom account using my email address, then followed the instructions to login via the email message I received. It’s the last option on this list (“How to link your Zoom account to an email and password.”) This logged me into my familiar Google-integrated account and populated my Outlook invites with the correct static link.
This does not solve the broader Google authentication issue with Outlook popups, but at least I can use my Zoom account with my school email now.