Web Client - Internet Explorer should prompt for redirect to supported browser
Currently when someone is invited to a Teams meeting, but they do not have the full Teams client installed, and they're default browser on Windows 7 is Internet Explorer (or some other unsupported default browser) the page should detect the User Agent string and present two possible options. 1) Advise the user to open the meeting URL in a supported browser (and list them right there) or 2) Give them the option to download the Full Windows Client but note that this is for Enterprise Users and requires a license.
Current behavior simply advises the user to download the full client with no stipulation around licensing restrictions or the limitation of Internet Explorer 11.
UserAgent detection in browser has been common practice for several years already and would be very easy to implement.