@EmilieEasie I have two physical devices, both running OpenWRT. One is a Linksys MR7350. It is only doing wifi; no dhcp server or dns or anything. The other is an old Rock64 board with a usb ethernet adapter plugged in; that's the router connected to my ISP and handles dhcp, dns (w/ adblock), and so on.

At one point I had set up two raspberry pi 4s to act as wifi access points running debian (with hostapd manually configured, and various wifi usb adapters plugged in), but I got sick of Pis.