I do understand that "forfeiture" means it becomes property of the state. But the quote I put earlier implied to me that this is done just so that it can be "sorted out" in the court. I understand that there may be cases where a property is in danger of vanishing forever and this makes sense.

But as formulated, it is clear to me that the property in question should be returned to their rightful owners (or auctioned off for compensation). After all, the state has no business in owning random cars, guns or bricks of cocaine.

If, as you imply, this is vastly not the case, it means the system is greatly ineffective. Either cases take too long to get settled, or the police take improper custody, or citizens are unaware of (or can't afford) legal proceedings required for just recovery.

Either way, sad state of affairs.