The report noted that those who don't have this feature may receive it over the coming weeks.
source https://zeenews.india.com/technology/whatsapp-rolling-out-new-interface-for-group-settings-screen-on-ios-2620195.html
source https://zeenews.india.com/technology/whatsapp-rolling-out-new-interface-for-group-settings-screen-on-ios-2620195.html