A telepresence robot is useful when it is stable, quiet and easy to join from a browser. The robot does not need advanced autonomy at first. It needs reliable video, clear audio, smooth low-speed driving and a way to recover when Wi-Fi drops.
Use an old phone or tablet as the video head and let the base focus on motion. Keep the center of gravity low, cap speed indoors and add a physical mute or privacy indicator so people know when the robot is active.