I haven't reported it, others have tho.
The name of the executable file is "Brackeys Game Jam 2025.1.exe", which has probably been the main red flag for a lot of people.
You also included the debug files and some additional dlls that aren't usually included in released, which is also a reason people flagged this game as suspicious. People don't like downloading games from itch so when they see files that aren't usually there it makes them very nervous.
If you want to be totally transparent it wouldn't hurt to show a screenshot of the file creation dates and the project start time in the Unity Hub.