It is possible, if you scroll to the bottom of the metadata panel, to see the file name of the image that you are viewing. But I realise this is clunky and not very intuitive.
We’re planning to make it so that the image list is automatically scrolled, in the correct position, and highlighting the currently selected image, when navigating to that page for the first time. See here. It’d probably also make sense to have a button, to return to the currently selected image, in case they scrolled away during that session. Would this fix the issue that you describe?