#14713 introduced a generic thread driver. However for generic convenience, this also makes the platform create/initialize the corresponding cluster, where src/platform/OpenThread/GenericThreadStackManagerImpl_OpenThread.cpp

#ifndef _NO_NETWORK_COMMISSIONING_DRIVER_
NetworkCommissioning::GenericThreadDriver sGenericThreadDriver;
Clusters::NetworkCommissioning::Instance sThreadNetworkCommissioningInstance(0 /* Endpoint Id */, &sGenericThreadDriver);
#endif

The issue with this is that generic platform code starts instantiating and depending on cluster code (which is likely application-specific as it would depend on ember code and overall dependency-wise platform is supposed to be one of the lowest layers in the SDK).

This causes build issues if we try to make network commissioning as a stand-alone buildable unit with dependency management (discovered in #39289).

We need some way for platform to not depend on clusters. ESP32 had the same thing for wifi and ethernet and moved the init calls into an app-specific location in #39346. A similar approach could be taken by openthread instances, however this also means several platforms may need updating.