Goalkeeper in 3-2-4-1 Formation: Responsibilities, Defensive Duties, Playmaking Roles

What are the primary responsibilities of a goalkeeper in a 3-2-4-1 formation?

How do defensive duties change for a goalkeeper in a 3-2-4-1 formation?

What playmaking roles does a goalkeeper have in a 3-2-4-1 formation?

How does the 3-2-4-1 formation impact a goalkeeper’s tactical approach?