When using an iPad that connects to an external monitor, the steam link app launches a black screen on the iPad and outputs the stream on the external monitor. However when using a mouse, it is unusable on the external monitor as it is trapped within an invisible barrier of the iPad screen and not the entirety of the external monitor. Changing the resolution of the stream to match the iPad doesn’t solve the issue. In addition whether using stage manager or duplicating the iPad display, the result is always the same. There seems to be no way to get the mouse to properly use the external monitor without being locked in the iPad screen. I believe it’s an issue of scaling or a bug, if the mouse scales with the external display it should be fine. Please look into this valve. It would turn iPads into PCs.