One、Should sliding doors have handles?
Sliding doors, also known as concealed doors, typically do not have handles because the purpose of installing a sliding door is to make it appear as if there is no door when viewed from a distance. Adding a handle would make the door more prominent and defeat the purpose of a "concealed" door.
However, if you want to install a doorknob, that is also possible. Please ensure that the color of the doorknob matches the door frame, and try to minimize its visibility.

Two. What type of handles are suitable for hidden doors in the home?
1、Integrated handle design
By directly embedding the handle within the sliding door panel, the user can simply pull the handle out to open the door. This design achieves a "hidden" effect and minimizes the risk of accidental bumps. However, cleaning the embedded handle can be challenging.
2、 Concealed handle design
Design the door handles with simple lines, using metal materials to create a decorative element that resembles a line on a hidden door. This design also provides a "hidden" effect and is easy to clean. However, it is important to note that the door handles should be made of copper, aluminum, or stainless steel to prevent rust.
3、Round handle
Invisible doors can also use micro-sized, single-headed, round-shaped organic glass handles. However, it is important to maintain consistent color to ensure both aesthetics and a warm atmosphere.