I just bought this game, but I can't make it run. When launched from a terminal, I get this output:

./start.sh
Running Slipstream
Picked up _JAVA_OPTIONS: -Dawt.useSystemAAFontSettings=lcd
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.lwjgl.LWJGLUtil$3 (file:/tmp/.mount_slipstsyB8oo/usr/bin/slipstream) to method java.lang.ClassLoader.findLibrary(java.lang.String)
WARNING: Please consider reporting this to the maintainers of org.lwjgl.LWJGLUtil$3
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Exception in thread "LWJGL Application" java.lang.ExceptionInInitializerError
at com.badlogic.gdx.backends.lwjgl.LwjglGraphics.setVSync(LwjglGraphics.java:591)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:124)
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
at org.lwjgl.opengl.LinuxDisplay.getAvailableDisplayModes(LinuxDisplay.java:954)
at org.lwjgl.opengl.LinuxDisplay.init(LinuxDisplay.java:738)
at org.lwjgl.opengl.Display.<clinit>(Display.java:138)
... 2 more
AL lib: (EE) alc_cleanup: 1 device not closed

What I tried:
Install sndio https://steamcommunity.com/app/732810/discussions/0/1848072002760795788/#c1769259642858470926
Install jre-openjdk-11
Add LANG="C" to the start script before the actual game launch

Operating System: Arch Linux
Kernel Version: 5.1.5-arch1-2-ARCH
OS Type: 64-bit
Processor: i7-4790 CPU @ 3.60GHz
Memory: 15,6 GiB
NVIDIA Corporation GP106 [GeForce GTX 1060 6GB] (rev a1)

I know that only Ubuntu is officially supported, but I rarely have issues with other games on Arch

I have the same exact problem under Debian and i also tried the same "fixes" as you. I Hope someone can help