OpnSense with 802.11 b/g/n Wi-Fi

[Cobra]

I want to install OpnSense on a MoBo with 802.11 b/g/n Wi-Fi to use as a secondary WAN or, alternatively, as a basic Access Point to which other APs will connect using VLANs.
i3 CPU and 8GB RAM.
WAN1 is a FTTC 100/20 Mb
What do you think?

[BrandyWine]

What would be the issue?
Use gateway monitoring to do wan switching. This does however suggest the radio on OPNsense is STA mode, not AP mode.

If not STA mode then you could run it as AP for wifi clients to connect to, but lose wan switching ability.

That said, it's doable on some radios to have a STA_AP mode (like we can do on ESP32), but having it hairpin the clients on the AP through FW based on .1q traffic then back out via STA when the gateway monitoring wants wifi as DFG, is something you would have to investigate.

If you're using a wifi radio to connect a 2nd wan, what's the actual 2nd wan, is it another ISP?