Should I keep my AX6000 now that I have a pair of Deco X90's (AX6600)? Should I operate both X90's as access points? If so, does one have to be wired to the AX6000? I also have two RE650's (AC2600) range extenders that I hope to do away with because they do not support MESH.  I want to operate a true MESH system (not One MESH).

If you suggest not using the AX6000, do I plug my Internet cable into 1 Gbps or 2.5 Gbps on the X90?  I will also have to add a switch into one of these since the Deco X90 does not have LAN ports.