I have a question about Lightroom mobile. Does the quality decrease when you send an image from your camera to your phone via camera app ? I have a Sony a7r ii and I use the imaging edge app sometimes. But I normally edit on my laptop. It's just when I take a shot and send it to my phone I try to zoom in and see the pixels and I can't see it .
On iOS you can use the direct import via sd-card or with having your camera connected with your mobile device. Original will imported and also editable via Lr. That said there should be no quality decrease. Hope this helps - Guido/ Lr Mobile QE