Switching v3 Hub from WiFi to Ethernet

I know that technically if I connect the hub to my router VIA Ethernet it will use that over WiFi, but I don’t like that it somehow also maintains a wireless connection to my router too.
Can I somehow trigger the hub to forget the WiFi network it’s on, or to re-initialize it without losing all my devices and automations?

Most wifi routers allow you to black list devices. I’d just black list the MAC address for the hub’s wifi.

Not a bad bandaid solution. I wonder how the hub would react in that event, though. Would it constantly keep scanning and trying to connect to its saved network?