xfreeRDP using self-signed certificates

[BryanDRH]

I would like to use a self-signed certificates and connect to my windows rdp server(2019) through xfreerdp v2 on Ubuntu 20.04

So i have created a self-signed certificates and i mentionned the Ip adresse in the FQDN field.

I tried to add my cert in
/usr/local/share/ca-certificates/soge and
/usr/share/ca-certificates/soge

i copied my cert in soge folder with permissions (755 for the folder, 644 for the file(.crt))

I edited /etc/ca-certificates.conf and i added the relative path of my cert soge/soge.crt

Then sudo update-ca-certificates and sudo dpkg-reconfigure ca-certificates

It tells me that a certificate has been added

This is literally what i did, but once im trying to use xfreerdp i got this as return (see the image)

QUESTION :

My Question is how do i know xfreerdp are using my cert ?

Sorry for my english