I forgot to add the pictures... here they are. :)

On iPhone:

After Photo Transfer App downloaded (on PC):

If I copy them from the iPhone to PC via USB-C/Lightning cable, they copy over as the full file size.  The issue is copying videos/images from the phone has always been challenging because you often get errors while trying to copy.

Just so you know, this issue is still present.  I have 4K video files and on the phone, through windows explorer, they're around 3 gigs in size but when I download it with the app, it doesn't matter if it's via surfing to the URL through the browser or download and install the app in Windows 11, it still cuts the file size nearly in half. I've attached two screenshots.  sizes-1 are the sizes on the iPhone and sizes-2 are sizes after transferred with Photo Transfer App.

Oh and naturally, I am choosing full size.  If I'm recording in 4K, there's no reason to transfer anything but the original size/quality.  I will say the videos are still in 4K but why in the world would they cut the file size in half?  It has to be removing something.