Most managers are not leaders. At minimum, they approve expense reports and check the boxes. Better ones know how to operate in an organization and detect & solve operational problems.
Leaders take a position and make their case and defend it effectively. They grow and support the people around them. And they try to improve themselves along the way by learning from the people above, below, and parallel to them. They have the trust of people around them because they earned it and reflect it.
You can be none of the above, one of the above, or - and this is special - both of the above.
And of course, none of that is static. People can improve and grow at any time.