First of all, thank you for providing a Linux build! Many first-time developers skip that, so it’s much appreciated. It’s also great to see more devs using FOSS engines like Godot. One quick tip: you can actually set 'Godot' as the official Engine in the page settings to help with discoverability.
As for the game itself, I really enjoyed it. That entity was genuinely unsettling and creepy! For a first project, this is very well done.