This is for use at home but, on my LAN on a typical night there are 2 sky boxes, 2 or 3 laptops, 1 gaming PC, 1 Mac, 4 smart phones, several IoT devices, some Raspberry Pi's (one as a media server) an android tablet and now a Nethserver and in the near future a second micro server that will probably be an VM host to a few more things.
So about 20 connected clients but a lot of them are not making huge demands for internet traffic.
I want to basically turn my Sky router as near to being a bridge as possible. Unfortunately you cannot select it as a true bridge, but if I make it as open as I can - traffic wise - I can use the Neth FW instead.
My Wifi traffic goes through a second TP-LinK router that only does the WiFi, no WAN connected. This way it to will pass via the FW