I might not have picked that up... having a look.

Hmmmmm:

"This release is the first to embed GPU acceleration through the OpenCL library. Not all graphic cards/drivers support it yet, that's why on Linux and Windows the release comes in 2 flavours: with or without OpenCL support. If you experience issues with the OpenCL enabled version, let us know and fall back to the other version until we can fix the issue. Right now, only the path integrator with sampling one light source at a time supports GPU acceleration.
Worth noting too: closing the GUI now aborts the render instead of waiting for a clean state with saved data. Don't forget to force a save with the new menu entries before closing if you have large write intervals.
Thanks to all those who have made this release possible, especially documentation writers who are still working really hard on updating information and help topics. We hope it will help exporter writers and users get the most out of LuxRender."

See whatcha mean, Lucifer.

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks