What I do is to run the exiftool to strip all the metadata from the image. Next, I check if there are any identifying details in the image like landmarks or background details (e.g. stuff on my whiteboard). And finally I check for the unwanted reflections or for the setup that could be recognised outside the community I share the photo with. Last but not least, I never share a photo in more than one place.
Reflections are a big one that is easily overlooked. I typically stare at a picture for a couple minutes looking for tiny reflections that some psychopath on the internet could enhance and glean identity from. I shut geo location on my pictures off so that I don’t have to worry about that, but I recently turned it back on. How do you run that tool on Android?