Sadly the Linux build doesn't work. I get the splash screen, but the buttons don't do anything. On the terminal, I get:
$ ./Battletank\ Buds.x86_64
Godot Engine v3.2.3.stable.mono.official - https://godotengine.org
OpenGL ES 3.0 Renderer: GeForce GTX 1070 Ti/PCIe/SSE2
Mono: Log file is: '/home/jim/.local/share/godot/app_userdata/Project Tank/mono/mono_logs/2021_02_23 10.09.39 (13656).txt'
ERROR: can_instance: Cannot instance script because the project assembly is not loaded. Script: 'res://Scripts/GoToLevel1.cs'.
At: modules/mono/csharp_script.cpp:2939.
ERROR: can_instance: Cannot instance script because the project assembly is not loaded. Script: 'res://Scripts/MenuButton.cs'.
At: modules/mono/csharp_script.cpp:2939.
ERROR: can_instance: Cannot instance script because the project assembly is not loaded. Script: 'res://Scripts/Quit.cs'.
At: modules/mono/csharp_script.cpp:2939.
ERROR: can_instance: Cannot instance script because the project assembly is not loaded. Script: 'res://Scripts/GoToLevel1.cs'.
At: modules/mono/csharp_script.cpp:2939.
ERROR: can_instance: Cannot instance script because the project assembly is not loaded. Script: 'res://Scripts/LevelsBack.cs'.
At: modules/mono/csharp_script.cpp:2939.
ERROR: can_instance: Cannot instance script because the project assembly is not loaded. Script: 'res://Scripts/InstructionsBack.cs'.
At: modules/mono/csharp_script.cpp:2939.