Run inxi -Naz to make sure your USB Wi-Fi is recognize by the OS

Choosing right Wi-Fi device is confusing for some desktop envionment

Here, in KDE Plasma there is no way to distinguish my desired SSID will connect through which one as I have two Wi-Fi receiver in my device (One is Built-In PCI another one is USB dongle picture showed above)

nmtui could be your lifesaver.

If you run nmtui-connect from terminal you can see list of available Wi-Fi device to connect separately for PCB and USB. Which was not the case for KDE GUI



Hope this guide will help someone