If more fuds on this thread, I will close it and open a self-mod one. I am looking for simple facts, nothing is complicated at all.

Huh?  

If you can't find a multisig address with transactions associated with it on the XC blockchain, then why don't you create your own multisig address and do some transactions with it to see how it works? Yes, I could do this myself in the time it took me to make this post, but I am not going to do it. You can do it yourself because you are the one who wants to see how it works. Do your own research, please.

If there are indeed no multisig addresses on the blockchain with transactions associated with them, then the only thing that proves is that no one has used multisig on the XC blockchain. It most certainly does not prove that this feature has not been implemented.