Is rudder required for coordinated turns?

Bob Moore writes:

All swept wing airliners that I am familiar with (Boeings) have
a full time yaw damper that keeps the rudder where it belongs at
all times. The airplanes make perfectly coordinated turns with
one's feet flat on the floor. :-)

I thought a yaw damper was just intended to prevent dutch roll.

At least on the 737-800, the yaw damper can be turned on or off at
pilot discretion.

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