WN573HX1 - Getting Started June 2024

this setup sounds like you will need mesh.

you have two options: WDS or 802.11s mesh
https://openwrt.org/docs/guide-user/network/wifi/atheroswds
https://openwrt.org/docs/guide-user/network/wifi/mesh/80211s

here is some good explanation WDS vs 802.11s: