Hi,
I have a solution for you.
Please do not use the Debian package for XyGrib. It is not supported by us and it is not a latest version.
Download the XyGrib network installer for Linux at
opengribs.org/en/downloads
Extract and run the installer (select additional resolution maps if needed)
After installing a library file is needed for the appimage wrapper on XyGrib to run
add the file by performing the following command in a terminal window:
sudo apt install libfuse2
Now the XyGrib application will startup
Enjoy