Subscription requirements

Before purchasing BF 6 for XBox series X, I searched for subscription reuirements to play BF6 Multiplayer. Every search came back with no subscription requirements to play multiplayer. So I purchased and installed it, but all the multiplayer options have the lock icon in the selection box. If I click on a multiplayer option I get sent to a page to purchase a Gamepass Subscription. I'm confused. Is a gamepass subscription required for multiplayer? Thanks