Does anyone use Pi-Hole for larger-than-home networks, e.g., for an office, cafe, school...? Also, it seems like Pi-Hole ought to be a router feature rather th

Does anyone use Pi-Hole for larger-than-home networks, e.g., for an office, cafe, school...? Also, it seems like Pi-Hole ought to be a router feature rather than requiring a separate device. Does any router vendor or router OS distro integrate Pi-Hole?