All digital photos have metadata.
Nope, not all digital photos have metadata.
Regardless, this article refers to visual data in the image, not embedded metadata.
There are apps that have been around a long time that allow you to erase metadata on your pics, or any other photo in your possession.
Yup
Looking at the code you can determine if the image has been photoshopped.
Islamic pricks hide messages in the code.
I was under the impression, too, that all digital photos do indeed contain EXIF data. I have an app that allows you to remove it and Ive used it for certain photos Ive posted at times.
I would never use Google Photos ever. Its bad enough we are monitored in so many ways but giving Google more power, no way!