How come the replacement screen I bought doesnt match my phone?

I have an iphone x and was trying to replace my screen. On the left is the screen i received - it seems to have support brackets all the way around and does not fit my phone. However, my original screen does not have these brackets and is flat all the way around. Does anyone know what my problem is + why my iphone x seems to be different than the normal one?

if this is the correct screen…how are these tabs supposed to fit into what looks to be a flat bracket covering?

also comparing other iphones online, mine looks to be a bit different with this top area as well? anyone know whats going on here?