Two of us are squeezing past a starboard boat — do I owe the other one room?
Yes. A right-of-way boat is also an obstruction to anyone who must keep clear of her. When two overlapped boats pass an obstruction, Rule 19.2(b) makes the leeward boat give the windward boat room between herself and the obstruction — and this overrides Rule 11. The leeward boat's right of way does not let her squeeze the windward boat into the starboard boat. (World Sailing Case 11.)
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<p><a href="https://sailing.kiwi.nz/upwind/case-11-room-at-an-obstruction/">Source: Sailing Kiwi</a></p>