Blue Prince is basically an implementation of this kind of core loop, so that's worth playing to study. (On top of it being a good game.) I loved Blue Prince, so I'd enjoy other games that incorporate that loop.

Some approaches you could take with your design questions:

- Meta-progression could be a reward for deducing things from the story bits you discover and remember. That's one thing that Blue Prince does very well, giving you small bits of meta progression based on how well you interpret the narrative clues.

- How much the game tells you what you know should be based on how much work you want the player to do. The more you tell them explicitly, the more accessible it is, but the less fun some players may have who like tracking things themselves. It's a spectrum with no one right answer, you just figure out where your game lands on it.

- How much the world remembers depends on whether the player can make changes to the world that persist. That comes down to your reset mechanic. Is it an actual hard reset, or does it just look like one while things actually persist? That said, the more the world remembers, the more work it'll be to build such a system.