Yes, it is connected via LAN, although I could attach a dongle to the desktop as well. Neither the 2.4G nor 5G wifi are unsecured, but they are still using the default password. Neither browser on the phone can pull up 192.168.8.1, nor can either Firefox nor Chromium on the Linux desktop.
While I’d be tempted to just flash OpenWRT, I don’t want to void my warranty so soon after purchase.