Which is not a bad thing, it’s more unix if you will. Router is a router, switch is a switch.
You provide your own switch and you choose the features: port count, port speed, vlan, etc — or get a 10€ switch if you don’t care. When a port breaks you replace the switch alone.
Multifunction tools are generally a tradeoff where you buy immediate convenience and pay with more ewaste and more money in the long run.
Turn it off then and use your own APs, it’s what I do in my home. I don’t have this specific router but I have a box with 2 eth ports, one goes to pppoe and the other to my home switch, where my APs are connected.