No, the position of the Sun in the sky changes throughout the year due to the Earth's tilt on its axis and its orbit around the Sun. This phenomenon is responsible for the changing seasons. The Earth's axis is tilted about 23.5 degrees relative to its orbital plane, resulting in the Sun appearing at different heights and angles in the sky at different times of the year.
During the course of a year, the Sun's path across the sky follows an apparent pattern called the ecliptic. On the two equinoxes (around March 20th and September 22nd), the Sun appears directly overhead at the equator, and day and night are of approximately equal length all over the world.
As the year progresses, the Sun's position gradually shifts toward the northern hemisphere during the summer solstice (around June 21st in the northern hemisphere) and toward the southern hemisphere during the winter solstice (around December 21st in the northern hemisphere). These are the days when the Sun reaches its highest or lowest point in the sky, respectively.
Leap years, which occur every four years to account for the slightly longer solar year, do not affect the changing position of the Sun throughout the year. Leap years are introduced to keep our calendar in alignment with the solar year, which is approximately 365.25 days long.