The FCC Just Banned the Sale of New Wi-Router Models Made Outside US

https://lemmy.world/post/44661014

The FCC Just Banned the Sale of New Wi-Router Models Made Outside US - Lemmy.World

The surprising order means any new Wi-Fi router models sold in the country must be US-made, or receive an exemption from the Pentagon or Homeland Security Department.

How to Configure and use Linux as a Router

This tutorial explains how to use a Linux system as a router for IP forwarding on the local network.

ComputerNetworkingNotes
from a ~1 minute skim I don’t think that supports wireless, aka Wi-Fi.
not reading it either, but if they don’t say how, you just configure hostapd
If Linux has drivers for your card, yes.
Yes. Linux can (usually though not always) drive a wifi card as an access point.