I don't really get the feature, to be honest. So I can save my run and turn off the PS5 and then come back to the save point, but if I die at any point before getting to the next stage (or whatever it's called) the save point goes away and I restart completely? Am I understanding that correctly? Can I save whenever or do I have to get to specific save points?
It's a rogue-like, so when you die you start from the beginning and lose all your money (currency) weapons and items.
BUT you keep certain things like weapon trait levels. A special currency (ether). Your own knowledge of the area, enemies, item locations, bosses (most important!!).
Once you beat an area and its boss, you open a shortcut to the next level that you can take without having to do that level all over.
There is a hard checkpoint midway through the game as well that you will respawn at every time you die.
There are 6 levels in all broken up into 2 acts. So levels 1-3 are first act. 4-6 are second act.
If you die in level 3, you will respawn back at the beginning in level 1. But you will have opened up shortcuts from level 1 to go back to level 3 without doing all of levels 1 and 2.
The same idea goes for levels 4-6.
Before the new save feature, you couldn't save anywhere. You were always going to start back at level 1 (or level 4) if you turned the game off. That meant the runs could last a few hours and people were mad at that if real life called they had to start back at the beginning.. So this save allows them to save the game and come back to that spot where they saved. But the save disappears after you load it.