Potholes are normal thing in Croatia, here we are so used to it, that is a normal thing for us.
but I'm talking of something else. Majority of roads in Croatia are paved with limestone asphalt. It is a low quality and slippery as hell. Your normal car will have problems with grip.
In 2021 WRC drivers told that asphalt was tricky, slippery, challenging...

But it could be worse.
The worst tarmac roads are in Istria and Dalmatia.
There are rumours that WRC could be in Istria next years. The interior of Istria, when it rains the roads are so slippery that it is like you are driving on ice + stone walls on each side of the road. So good luck.