What an Italian collapse in 1916 changes on the Adriatic front

What if Italy collapsed in 1916 while France remained in the war until 1918?

Austria-Hungary gains troops for France, but Italian civil war and Allied control around the Adriatic still limit the strategic benefit.

An Italian collapse in 1916 would have different effects on land and at sea. Austro-Hungarian troops could leave the Italian front and reinforce operations against France, but occupying Italy would risk drawing them into a civil war and renewed local resistance. Allied units in Italy could withdraw to islands or Malta and continue containing the Adriatic exit. The Austro-Hungarian Navy would remain trapped behind that barrier unless its strength and access changed dramatically. France surviving until 1918 might help the Habsburg state retain cohesion for longer, but military defeat would still threaten the empire's survival. Removing an ally from the map does not automatically release every enemy force or overturn maritime geography.