The short answer is yes! The type of painting project will determine what brush is best to use to get a smooth finish. For example, a quality brush with a flagged tip will work well for trim work or doors. This is because the bristles are split at the end which allows the brush to hold more paint and release nicely.
If you’re painting a rough textured surface or a flat surface, you’ll want a larger, thicker brush. Other factors include the type of finish—water-based or oil-based finish—and handle design.