@Suiseiseki routers are tivoized as shit these days and half the time the free firmware needs six million blobs to work, some old kernel, or maybe doesn't even use the radios of your router.

It's literally like game console or phone hacking is in current year, unless you buy the very specific Free Router 4000 that has some old Wi-Fi standard while all the cool kids with dad's credit card are buying the Bitchin Fast AX Mesh Router.