Win installer and portable use different libraries?

I just noticed that the Windows installer and Windows portable use different libraries. This is confusing when you want to triage bug reports.

This report for example:
https://github.com/FreeCAD/FreeCAD/issues/10319

Portable:

OS: Windows 8 build 9600
Word size of FreeCAD: 64-bit
Version: 0.21.0.33675 (Git)
Build type: Release
Branch: (HEAD detached at 0.21.0)
Hash: 41b058e2087de60dc8fef3d3e68c7d0129e13abf
Python 3.10.12, Qt 5.15.8, Coin 4.0.0, Vtk 9.2.5, OCC 7.6.3
Locale: Dutch/Netherlands (nl_NL)
Installed mods:

Installer:

OS: Windows 11 build 22621
Word size of FreeCAD: 64-bit
Version: 0.21.0.33668 +7 (Git)
Build type: Release
Branch: (HEAD detached at 0.21)
Hash: 41b058e2087de60dc8fef3d3e68c7d0129e13abf
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.3
Locale: English/United States (en_US)
Installed mods:

The reason is straightforward.

The installer version uses LibPack and the portable version uses Conda.

Why the library strategy is different is a mystery. :question: :question: :question:

Gene