The problem is that snap and appimage are meant to be self contained packages. To get them to find any extras needs tricks alike @bge has posted.FreecadVin wrote: ↑Wed Sep 22, 2021 11:13 am Shouldn't the ifcopenshell be installed (copied) into the snap. Unfortunately I can't do that. As I'm not the snap-owner.
The Conda based appimage that FreeCAD publishes tries to anticipate this and includes many extras, like ifc, in the package. Which makes the package size increasingly bigger.
I would encourage any Ubuntu or Ubuntu based (Mint for ex.) to use the FreeCAD-daily PPA. Compiling yourself is still the best.