Eh, any sufficiently large or complex codebases will get ridiculously long names at some point. Here are some from a famous C API (Windows):
CoMarshalInterThreadInterfaceInStream
D3D12_GPU_BASED_VALIDATION_SHADER_PATCH_MODE_UNGUARDED_VALIDATION
RtlWriteDecodedUcsDataIntoSmartLBlobUcsWritingContext
Or how about: GtkColorSelectionChangePaletteWithScreenFunc
The alternative is things having names that aren't actually descriptive at all, which is not clearly better.