Earlier quoted context omitted.
I even run Adguard Home on my router that runs opnsense.
What routers are compatible with opnsense? Or does it need a full-blown server/container? Been happy with my pihole for a few years, and this thread is full of new information for me.
Most people either buy a generic box that can be had for ~$250, or recycle an old PC and stick in a network card. You can also buy commercially supported hardware for Opnsense or Pfsense's parent companies, though the value proposition isn't worth it for home users IMO as you will pay a steep premium versus loading up something yourself.