Not sure how useful it will be for you but here is a list of every scene in the unity game:
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Under each character name is the Level (or, the scene in the unity project), and next to it a very brief description of its content. So, minor spoilers for scenes.
I've used them with some code injection via dnspy to jump directly to scenes. Putting the code below into BethScript.checkBethStates() under the main Assembly-CSharp file. This hard breaks the game forcing only that 1 scene to play no matter what, so I can't really recommend this route for most people.
Code:
SceneManager.LoadScene("summer_8");
Alternatively, if you're on windows, you can modify the save file located in your windows registry, under: Computer\HKEY_CURRENT_USER\SOFTWARE\Ferdafs\RickAndMorty. In most cases, to set your progress to a scene you can use the indicated name from the list and your progress will be set to that scene. This is not a hundred percent, but it does work for most of them.
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I know it's not the ideal method of play, but it has helped me get to inaccessible scenes, and bypass no functional transitions.