Nice game! It reminds me a bit of mine, but with a longer storyline. I was confused about what to do when begging, maybe you should add hints for the player when they get stuck. There is other feedback:
1) The controls are very hard and you should tune them - no coyote time, you can easily fall off the platform.
2) Why can I click on the game folder on the main screen and it restarts and resets all progress T_T
3) The cipher part is overwhelming. When I see 5 different notes, a browser with 5 tabs, I just don't want to do anything because it's very hard to understand what the next step is. Maybe adding a progress bar that tells you what to do next would be good. I am not a fan of these things where the player has to think carefully about what to do next (like in Outer Wilds), I prefer when the game gives you instant feedback.
Still, very solid attempt! Also +1 for the phonk ;)