Coffee or not coffee?

Is decaffeinated cappuchino with oat milk still coffee?

Today I ordered exactly that – alongside a piece of carrot cake at the café around the corner from my place.

In my defence, I can point out that it was already after 5 p.m.
Apart from the circumstance that caffeine in the evening keeps me awake involuntarily.
One might make the argument, you shall not order coffee with milk after 11 o’clock.

What do you think?

The carrot cake was delicious, by the way.