Precisely. There are games where random factors like a particular loot drop, or doing well in an early battle thanks to random critical hits, or a good randomly generated starting point all determine if the game is reasonably beatable, or if you end up softlocked.

There are other games with certain, let's says pranks, played on players with one hit kills that can only be avoided with foreknowledge. In modern games, at least these pranks are made shortly alter save points or there is a Dark Souls like way to regain equipment/progress. In a lot of older games, the player is forced to restart a big chunk of the game. At that point it becomes a test of patience rather than skill to replay the same level over and over.