Godot 4 (or 4.4? Regardless, the version of Godot we had) just didn't support web exports. I don't recall why, or how to work around it, and we were short on time for submitting, we didn't have the energy nor brainpower to think about the hottest shot from the game, or how to web export.
Thank you for the feedback, I reckon we'll need more practice with handling difficulty for games down the line. Hopefully our next game wil have better flow.