I think the more obvious option is for Apple to fold in a privacy setting to each app for photos, alongisde the one that controls which photos are avaialble, so

I think the more obvious option is for Apple to fold in a privacy setting to each app for photos, alongisde the one that controls which photos are avaialble, so that you can choose on a per-app basis whether the OS strips exif data prior to making those photos available to the app.