Windows doesn't support BWU from WIFI_LAN to WIFI_HOTSPOT. Because when the discoverer side try to switch from current AP to the Hotspot, it loss physical connection. When here's no physical connection, BWU protocol frame exchange won't be finished successfully, then BWU will fail eventually.
In the current code implementation, if Windows Nearby act as Advertiser, it will not do BWU from WLAN to Hotspot. This CL adds similar logic when Windows Nearby act as discoverer.
PiperOrigin-RevId: 453248717
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