One class D is not digital in anyway
What do you call the conversion of an analogue signal to a PWM/PDM or ΔΣ modulation and its subsequent filtering to recover an amplified analogue signal? Because if that’s not digital, then CD is not digital and streaming is not digital either. However, that’s exactly what happens in a class-D amp, at some point. The filtering is at the very end, but the signal conversion can happen at the amp input or just before the final (current) amplification stage.