Currently, it was discovered that in the case of several different
Intel dGPUs being present in the system, the experimental L0 copy
optimization does not work correctly in the Intel Driver, which is
causing crashes in the driver and Blender application. So, to avoid
this situation and restore functionality on these platforms,
a workaround was added to disable this extension from being used if
such a configuration is detected. In the future, when this problem is
fully fixed in all Intel Drivers, this workaround can be removed from
the Blender source code to restore some performance that was lost on
configurations of several dGPUs because of this workaround.
Pull Request: https://projects.blender.org/blender/blender/pulls/144262
21cba7024c