I do the same and it works well. But do you see the Reolink app hammering domains of the form p#p#.reolink.com? I have to kill the app between uses it it drains my phone's battery because of this.
I've never looked at what the Android app is doing on the network, but maybe I should. I usually just keep it open for a few minutes when I'm waiting for a delivery or I hear someone ring the doorbell, so I'm not too worried about it piping lots of video to Reolink HQ. I haven't noticed much of a battery drain having used it earlier in the day.