I have only tried the RLC-410 with ONVIF and it could capture an image but the cameras motion detection is not compatible with ONVIF.
I’m not sure if you are aware that Homey can only capture a still image and is not able to process a live stream from any camera.
The ONVIF app currently doesn’t support pan and tilt and not sure if it makes sense to add it as you can only see a still image so the position would be hit and miss.
For storage there and 3 possibilities, SD card in the camera, NVR and cloud. All of which are independent of Homey.
So the question is why do you want to connect it to Homey?
For me, the only benefit is to trigger flows upon motion detection and the Reolink won’t do that.