No, it's not included and has to be bought separately, it's always been a bit more expensive to buy something that's sustainable, but I think Fairphone could have included at least one charging cable in the package. Only this is included:

Fairphone 4
Quick-Start Guide
Environmentally friendly packaging

This Xiaomi Fast Charger comes with a USB-C cable:

Xiaomi Mi Fast Charger with GaN Tech (65 W, Fast Charge)

Given the extremely high price of the Fairphone, I wonder if it wouldn't be much cheaper to buy a Xiaomi or Poco phone, for example, as these phones always come with chargers and charging cables. That is no longer fair, but it is fair for the consumer, because you save a lot of money.

The Fairphone 4 is certainly a good thing, but spending so much money on a Qualcom Snapdragon 750G and a small 3900 mAh battery should be well considered.

A Xiaomi 12 with 5G, 256 GB of storage, a Snapdragon Gen 1 processor that is more than twice as fast and a 67-watt charger would be available for as little as CHF 499. The phone could also be wirelessly charged and the cameras should be a lot better (the Fairphone 4 only got a meagre 69 in the DXOMARK camera test, which is a smartphone class of around 200+ francs), while the Xiaomi 12 got almost double that with 112.) Maybe that would be an alternative?

Xiaomi 12 5G (256 GB, Blue, 6.28", Dual SIM, 50 Mpx, 5G)