How do you access Amex lounge with Amex Velocity Platinum card?

I have a Amex Velocity Platinum card which I believes comes with two Amex lounge passes in addition to the two Virgin lounge passes. In order to use the two Amex lounge passes, do I need to show boarding passes for a particular airline or just any airline? Thanks

I believe you just show your Amex card and any boarding pass as it is not tied to any particular airline.

Thanks Warren, that’s what I thought