The original white balance module was split into white balance (for general purposes i.e. demosaicing) and color calibration (enables you to use multiple instances and masking for wb). See here: darktable 3.8 user manual - white balance
The original white balance module was split into white balance (for general purposes i.e. demosaicing) and color calibration (enables you to use multiple instances and masking for wb). See here: darktable 3.8 user manual - white balance