The Intel(R) RPL AVStream Camera Windows driver is a software component used to operate and manage the camera on devices that use Intel's "RPL" (which stands for "Rocket Lake Platform") architecture. This driver enables your system to recognize and interact with the integrated or external camera (such as a webcam) on laptops or desktops that are powered by Intel's processors, specifically the 11th Gen Core processors, which include the Rocket Lake series.
The AVStream part of the name refers to "Audio/Video Stream," which indicates that the driver supports streaming data (typically video and audio) from the camera to the system, so you can use applications like Zoom, Microsoft Teams, Skype, or video recording software.