The wifi card in this system is not replaceable  -- it is hard soldered to the system board, so any upgrade requires a USB (external) adapter.   Service manual has the details: [URL]    
Hello, I want to upgrade my Wi-Fi card in my Dell XPS 13 2-in-1 9365. It currently has the Intel Dual Band Wireless-AC 8265 and I would like to get the Intel Wi-Fi 6 AX201. I am just not sure if it is compatible with my system. Only reason I am upgrading is because I cannot use WPA3 Wi-Fi settings on my new router with the current Wi-Fi card in my laptop. If anybody has any suggestions as to if this is compatible or what might be compatible I would love for the help.
XPS 13 9365 Wi-Fi card upgrade compatibility