Guests cannot log in to iOS mobile app or web app.
Please fix this bug. On Android guests can log into Teams if they first log in on the Teams web app. But on iOS browsers (both Safari and Edge), the link to join a team takes user to the mobile site, and there is no option to open the Teams web app, even if they request desktop site (except on older devices like iPhone 5S).
This bug has been confirmed on multiple devices (iPad, iPhone 8, etc. as well as with the newest version of iOS (13.5.1))
Even if users first log into Teams web app on desktop and then try to log into guest account in iOS mobile app it doesn't work (see error message attached).
Please see this bug for more info and a video https://microsoftteams.uservoice.com/forums/908686-bug-reports/suggestions/38737450-guest-users-cannot-log-in-into-teams-on-ios-device (I posted here so it is in the right category)
Thank you in advance for providing support.