The workbench does not open in the Flatpak version of FreeCad. Solution provided.

[TheOldMiguel]

When using the FlatPak version, a required dependency (scipy) is not installed and the workbench wont open. (Error: Module scypi not found)

This can most likely be fixed by adding the following line to package.xml:

<depend>scipy</depend>

as it was done in the FEMbyGEN workspace:

https://github.com/Serince/FEMbyGEN/blob/master/package.xml

in this way, the scipy dependendy will be installed to the correct folder for the flatpak:
~/.var/app/org.freecadweb.FreeCAD/data/FreeCAD/AdditionalPythonPackages/py311

The dependency should then also be listed in the Addon manager under the "Python dependencies..." button.

Thanks everyone for this great workbench!

[nicbn]

Also having this problem. Following work-around works while the package.xml is not fixed:

flatpak run --command=bash org.freecadweb.FreeCAD
cd  ~/.var/app/org.freecadweb.FreeCAD/data/FreeCAD/AdditionalPythonPackages/py311
pip3 install scipy --target .

(The path AdditionalPythonPackages/py311 may need to be created via mkdir).