You can plug a USB HDMI capture dongle into tablets and do this.
Any webcam viewer would probably work to view it, though there's dedicated apps intended for this like https://orion.tube/ on iPad. I know there's options on Android but don't have a modern android tablet to test them.
Any webcam viewer would probably work to view it, though there's dedicated apps intended for this like https://orion.tube/ on iPad. I know there's options on Android but don't have a modern android tablet to test them.