My suggestion:
Create a new launcher.sh script with the following code:
#!/bin/bash
mono Vintagestory.exe
Modify install.sh to use the following APPDATA & INST_DIR:
## define installation targets
export APPDATA="$HOME/.local/share/Anego Studios"
export INST_DIR="Vintagestory" && { echo; echo "Install game into ${APPDATA}/${INST_DIR} (data into ${DATA_PATH})"; }
Reasoning:
In unix we never create folders that go against the XDG folder structure, particularly in /home
There is no such thing as "ApplicationData"
The desktop launcher was named after the user which is strange