As a Product Owner, I'd like to be able to see how many of our Portal visitors use a "modern" browser, at a glance. The same goes for, at a glance, to see how many of our visitors use basic or unknown browsers.

The Portal team will keep within the Browser Compatibility guidelines listed here: https://www.mediawiki.org/wiki/Compatibility#Browsers

The new grouping could be called "Group by Browser Compatibility" and consist of 3 lines - one showing all modern browsers, one showing all basic browsers and one showing all other browsers (unknown category).