USING TELUS BOOST 7 WITH TELUS 6E ROUTER

I recently moved into a new house where i have the telus boost 7 router connected to the NAH on the main floor. I have my older telus 6E wired via ethernet (also connected to NAH) down to my basement to help with poor network downstairs.

Am i able to operate both routers as a standalone router with separate SSID, without creating a mesh? I am looking to set them up with separate SSIDs so that my devices don't keep on switching between wifi7 & wifi 6E networks.

Appreciate any information on how to get this networked as i like. Thanks.