It’s something several people have asked for and is on the ‘would be nice to have’ list.
I have revisited this feature request numerous times, and hit the same road block each time.
A lot of people using ProGallery like to store their images elsewhere; like on a sub-domain or CDN like Amazon S3. It would perhaps be a shame to show-off a feature that a lot of people could never use! So that is my resentment about adding EXIF support. It also poses a problem for people building galleries that use lazy-loading or contain different media types and image formats. My understanding is that only JPG and TIFF support EXIF standard v2; whereas WebP, GIF and PNG do not support EXIF?
Some more image / thumbnail layouts should become available in the next update. A few of these have much larger areas to display a greater quantity of caption content and basic formatting. So if it’s not too much effort, you could manually import / paste a fair amount of EXIF data to display alongside your images, and continue to build a stunning portfolio.