Not necessarily, unless you have all the Global Selling possibilities battened down tight for the US Marketplace; the Dashboards for the two-most important of these are linked in this 26Feb`24 post:
There are basically four main possible vectors of approach on this front: that pair, Remote Fulfillment, and the BIL Tool.
Having FBA Export - the second possibility - disabled, by default, disables the third (Remote Fulfillment), but the BIL Tool must be disabled via its own Dashboard, which I linked in a later reply to that same thread:
There’s a fifth possibility of finding unexpected charges from another of Amazon’s recently-renamed Americas Region Marketplaces, but there’s nothing a 3P Seller can do about that, as it involves purchases made from your 'Home" Marketplace (in your case, the U.S.) by a member of another Marketplace’s Buyer Community initiating a Return that the Amabots mistakenly assign to an in-country FC/RC/DC.
Fortunately, that’s typically a very rare occurrence - but it does happen.