Current OpenWrt supported WiFi 7 devices (to my knowledge) are
- Asus ZenWiFi BT8
Support for Asus ZenWiFi BT8 Tri-band Wifi7 (Mediatek MT7988)
https://github.com/openwrt/openwrt/pull/18243 - Banana Pi BPI-R4 + BE14 (with noise issue)
[Banana BPI-R4] Wifi7 status