Central beats hidden
The best router is often the one you can place centrally and openly. A closet location can waste an otherwise good router.
Modem location is not destiny
A longer Ethernet cable can move the router away from a bad modem corner while keeping the modem where the service enters.
Separate office and entertainment needs
Work calls, streaming boxes, and gaming systems may deserve Ethernet even if phones are fine on Wi-Fi.
Measure before upgrading
Run speed tests in the rooms that matter, then decide whether placement, Ethernet, mesh, or a router upgrade is the right fix.