ah, the narrower head of that dog you posted looked like a malinois to me, which i did know is a different breed.

In USA, we have
both the Belgian Malinois,
AND the GSD, yeah, it's two different breeds.

At first, like i said, i thought the dog you posted "looked like" a belgian malinois, cuz it
still has good square natural dog hips.
but
i think, til this minute,
i have mixed up the Belgian
Malinois, which i never noticed
does have shorter hair!
and the Belgian
Tervuren, which has longer hair.
i have always loved the malinois, and once came very very close to owning one...long story.
lol, i never realised, i had
those two belgian dogs swirled together in my mind.
re: the "old" gsd,
and the "new" gsd,
like many many ppl have mentioned on this thread,
many breeds have changed dramatically in recent decades from their original form.
.......cuz breeders were trying to meet the current fads for that breed, oops, i mean "standards" for that breed.
Dachsunds did not used to be THAT extreme. Bulldogs used to be able to breathe and give birth.
KingCharlesCavs rounded heads did not used to be SO round that many are now crippled with springomylia.
so many breeds have CHANGED from their original shape.