Gmail's Material Redesign is Officially Rolling Out to Everyone
The new integrated view will start rolling out to anyone with Google Chat enabled.
Google’s finally delivering on the new Gmail layout it’s been teasing since February. The company announced that Gmail’s new Material Design 3-inspired layout is now available to all. The revamped look will include immediate Meet, Chat, and Spaces integration without clogging up the page. Google even threw in a promise of enhancements specific for tablet users, along with numerous other improvements, though not until later this year.
Source and detailed post : https://gizmodo.com/google-gmail-material-3-redesign-how-to-access-opt-out-1849340231