Just used the Icare lounge at CDG . Only showed priority pass . Which lounges except just Platinum card, and how would you have only Plat without priority club select as a perk of the card
IME I have always had priority club membership with my Plat card for at least the last 3 years
There are two different things. one is priority pass. Amex buys you a membership as a benefit of the card. THat benefit gets you into priority pass lounges, which you can look up on their mobile app, brochure or website.
Then there is lounge access from the platinum card. This benefit gets you in to Airline Lounges for US Airways (Even if you aren't flying on US Airways) and Delta and American lounges if you are flying on that airline and c an show your ticket. For these lounges you need to show your platinum card, and possibly also your ticket. You wouldn't need the priority pass card here, because these lounges are not priority pass lounges, but airline lounges.