Teams Channel Posts and the Files Folder

DanielSchnyder I'm not aware of a 'solution', images are stored in the Teams media service, that's how it's been built.

Perhaps you could develop something that periodically looks at all the messages in a channel then accesses the associated images, downloads them then uploads them to SharePoint, but it seems like a lot of work.

I would look at what your business problem is and solve it a different way so the images end up where you need them, for example a PowerApp to take pictures and upload them.