File Size

The following (*) is copied from a closed post of 2 years ago, and one I am in complete agreement.  Perhaps it has already been addressed, and if so, I am not seeing where I can find this really basic data on my images file/s.  Thank you.

(*) "Please show the image file size in Mb somewhere, but would suggest to add it to the other info below the Viewer and in the the Metadata tab with the Dimensions.
The dimensions in pixels is shown, but the Mb would also be very useful so you know what you're working with.
Cameras may have an number of quality levels you can select for raw and jpegs, but there's no other info in the metadata tells you which one you've used."