On Samsung's version of Android there is an option to remove the location data before you share to an app.

https://i.imgur.com/PVAaA2d.jpg

On iOS 14 I have set the camera's access to Location Services as 'never'. If I inspect the EXIF on iPhone photos that I've moved to my PC the GPS fields are blank.

Facebook can solve a location from the content of the image. Listen to yourself. Even you can identify a geographic location from many images, easily.

I don't know, it's kind of a stupid idea, give Facebook an image and yet the expectation is, they're not supposed to know or understand anything about it?

I've turned off location tagging on my Android camera. That setting exists.