It is a legitimate Samsung system application. It is not malware, spyware, or a virus. Because it is a system app, you will often see it running in the background so that your multitasking features are ready to use instantly. Can (or should) you disable it?
Generally, you disable or force-stop this service. It is a legitimate Samsung system application
It handles the sidebar that allows you to drag and drop apps into split-screen mode. It is a legitimate Samsung system application
It manages the "active" state of the sidebar, ensuring it stays hidden until you gesture for it. It is a legitimate Samsung system application