FWIW, I do OPNsense on a dedicated box (Protectli FW4B) and then an R610 for wireless, with an eBay special EOL'd Brocade switch in the middle. A dumber switch

FWIW, I do OPNsense on a dedicated box (Protectli FW4B) and then an R610 for wireless, with an eBay special EOL'd Brocade switch in the middle. A dumber switch would be just fine, but I wanted something with 802.1at POE and good VLAN support because I like to break things up a bit. OPNsense is darned handy, and I like that it does more than an EdgeRouter would, like terminate a Wireguard VPN. The R610 works wonderfully, and the switch... well... it's a switch. Once configured it's kinda transparent. Moving houses soon, so I got a second R610 to fill in signal on what I perceive will be dead spots due to plaster+lathe construction, and in testing thus far it all seems to Just Work. And like you appreciate, since it's all modular it's a lot easier to maintain than the UniFi stuff when things go sideways. Very, very happy with this setup.