Adding these as a new post so that the additions aren't missed
11. Game state isn't entirely cleared/updated when loading previous saves in-game. Action timeouts are an example of this. If you perform an action which has a timeout, and then load a save from before performing the action, the action will remain timed out. Conversely, exiting the game clears all timeouts, so if you perform an action, save, and then exit the game, the next time you start the game and load the save, you'll be able to perform the same action again.
12. Certain scenes like the office job interview and enrolling as a student/teacher seem to require that you own specific clothing, with business attire (business shirt, business pants, loafers) being required for those examples, and if you don't own any or are missing certain pieces, then you just end up in the scene with missing clothing/naked. Similarly, the game doesn't always start you off with loafers, so if you do the job interview or join university before buying any, you will end up doing the interview or meeting people at the reception while barefoot
13. The cooking skill seems to have very little impact on how much of a complete meal you produce when cooking. Even with a cooking skill of 100, if you're playing on a high difficulty you'll still end up only producing like half a meal
14. On higher difficulties, it's next to impossible to gain muscle, or even maintain it. The amount that it decreases each day is greater than the amount you gain even if you lift weights at the gym every day