I was reffered there by a FB friend. Who i dont think has any connections to these platforms. But yes could be. I hope Not
I never heard about this "edxmarkets" but that right there (the way you heard about this exchange) is a major red flag as its a known scammer tactic in whihc they contact you voa social media platforms or dating sites, pretend to be interested just to switch conversation towards completely unknown exchange.
Another major red flag is that exchange is not on CMC/Coingecko. Being listed there is not sign of legitimacy, but not being there at all is very suspicious.