https://techcrunch.com/2019/01/07/netgear-adds-gigabit-routers-to-its-orbi-mesh/

My favorite mesh gear, Netgear’s Orbi, has gotten a considerable speed update. The new router, called the RBK50, supports Wi-Fi 6 802.11ax technology which will send gigabit wireless speeds from router to router in your mesh.

WiFi 6 is still new to the industry and there isn’t much support outside of specific hardware like this.