import glob, os
files = glob.glob(r'C:\fearx-photos\insta\*\*.jpg')
sized = [(f, os.path.getsize(f)) for f in files]
top = sorted(sized, key=lambda x: -x[1])[:3]
for jpg, js in top:
    webp = jpg[:-4] + '.webp'
    if not os.path.exists(webp):
        continue
    ws = os.path.getsize(webp)
    rel = os.path.relpath(jpg, r'C:\fearx-photos').replace('\\', '/')
    print(f"{rel}  jpg={js/1024:.0f}KB  webp={ws/1024:.0f}KB ({ws/js*100:.0f}%, save {(js-ws)/1024:.0f}KB)")