Answer : Some architects do have interior designers, but not all.
Most architects will create the layout and design of a space, but then leave the interior design work to someone else. Interior designers are responsible for selecting furniture, finishes, and other decors for a space. They also often handle things like lighting and window treatments.
Some architects do have their own in-house interior design teams, while others collaborate with outside designers. It really depends on the individual architect's preferences and practice.