in skyrim, as far as i remember, the spawn of the entities isn't random. there are nodes that spawn a very specific type of entity or a group of entities. and if they die than after a few days they spawn again.
enemies don't roam the map. they spawn where they need to and that's it.

made the wilderness kinda boring, IMO. pretty lifeless and depraved of gameplay.

is this the case with FO4?
because i mostly dont see enemies in places or ways that seem random. they all seem hand placed, like i am sure i will encounter the same enemies (albeit higher level) later if i pass through the same location again.

I recently just had one at the gas station right before the Police Station. The first time a wounded dog came out and prompted me with actions, I then died (forgot to save) raninto the same gas station and it was a hostile mongrel.

I'm sure people will start finding a lot more soon.

As far as spawns go, I really liked New Vegas where there were young creatures and creatures in packs. Something I have yet to see in FO4