The PR in question: LunarG/gfxreconstruct#1267
Issue about getting support merged: LunarG/gfxreconstruct#1393
Sadly D3D11 support isn't merged yet and the original CI build expired.
So here is a backup from the PR via a CI built release.
The dlls of interest for capturing D3D11 are inside the d3d12_capture
folder of the corresponding zip archive.