Hi Marine, thank you for trying to play the game! There are a lot of files in the folder and it can be hard to find. I just tried playing it from another computer for the first time and it took me a few minutes to find it (and I made it!) so I'm sorry for that. The executable name should be "GMTK2024" and it should have the main character as the icon. I found that if you select to order the files in your file explorer by type, it will appear first at the top after the "Content" folder. Double clicking on it should open the game.
I hope you like it :)