I'd imagine so considering the reason you probably bought it was for a shiny new powerful 6E experience. I'm guessing you are adding in conjunction with whatever WiFi your ISP provides bundled with their modem. If that's the case you most certainly want to use the Google Nest Pro 6E instead.
Turn off wifi from your original ISP supplied router, give the Nest network the same credentials - SSID and password and MOST devices will connect as before. Some may get sniffy and notice a difference, but I found almost all of mine didn't have a problem