Unfortunately, you cannot daisy chain the Dell U2720Q to the U2723QE using a USB-C (CC) cable, as the U2720Q does not have a USB-C output port that supports DisplayPort output. The U2720Q only has a USB-C input port that supports DisplayPort input, which means that you can only connect a device with a USB-C output port to the U2720Q using a USB-C to USB-C cable. The U2723QE, on the other hand, does have a USB-C output port that supports DisplayPort output, which means that you can connect it to a downstream device that supports DisplayPort input, such as another U2723QE or a compatible monitor with a DisplayPort input port. In summary, you can only daisy chain monitors that have a USB-C output port that supports DisplayPort output, and the Dell U2720Q does not have this feature.
I have a MacBook Pro and a Dell U2720Q. I'm wondering if I can daisy chain the U2720Q to the U2723QE through a USB-C to USB-C cable since I'm planning to buy the U2723QE?
Daisy chain U2723QE and U2720Q from MacBook Pro