Best Mesh configuration

I am considering investing in Mesh Wi-Fi within the house (mainly to stop the wife complaining her Teams is rubbish).

Anyway I have a Linksys WRT32X router. Is the easiest method to disable the Wi-Fi channels on this device and plug the Mesh solution into one of the routers 1gig ports.

Or is there any great benefit in linking the Mesh to the current WRT32x wifi channels and keeping them enabled??