I was just testing a Roku camera (was on sale for $23 from roku.com, I think) and it had the same feature (setting up wifi by showing it a QR code), which I thought was neat. However, it doesn't look like it exposes RTSP and works with the Roku app only (even Wyze, seemingly using the same OEM hardware, has a way to enable RTSP).
I tore down an ankya brand device which had some fun features like setting up the wifi password by showing the camera a QR code