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wireshark enabled "promisc" mode but ifconfig displays not

I am trying to watch the data transfer between two stations connected to a wifi router.

My Ubuntu is also connected to the same router, using the same wifi ESSID.

Wireshark is configured "enable promiscous mode on all interfaces" in "capture options".

I see some traffic to/from my machine and not the remote traffic I want.

I use "ifconfig" command while WireShark is running, and do NOT see "PROMISC" flag :

wlx8416f90e4d75: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

Is it an indication that the network card does not accept "promiscous" mode ?