How is the wattage distributed when two or three devices are connected? And is there a difference if one device is plugged into the USB-C1 or USB-C2 port?

I would also like to see this in general for all (where possible and known) USB chargers

Question

How is the wattage distributed when two or three devices are connected? And is there a difference if one device is plugged into the USB-C1 or USB-C2 port?

I would also like to see this in general for all (where possible and known) USB chargers

Accepted Answer

You won't find this information in the instructions or product description, but it is printed on the side of the charger (barely legible).
C1+C2 45W +18W

Answer

In the specifications on the digitec or galaxus site you will find a "Technical data sheet.png" under Documents. 
This answers exactly this important question. I have (so far) found this for all Digitec chargers.

Answer

That doesn't answer the question, does it? Suppose I connect 3 smartphones to the charger - how fast will each of them charge?

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Question about Digitec GaN 3-Port Fast Charger

How is the wattage distributed when two or three devices are connected? And is there a difference if one device is plugged into the USB-C1 or USB-C2 port? I would also like to see this in general for all (where possible and known) USB chargers