We saw from the older U2723QE thread that Apple stated that they do not support MST DP out daisy chain. [IMAGE] You should post the question on the Apple Forum to see if any of them got it work.
I am going to buy a new U2723QE. I would like to use daisy chain with my current U2520DR via USB-C (Video + data, up to 90W power delivery)And connect to my MacBook Pro 14" 2021 via USB-C Thunderbolt 4. Could anyone confirm that this will work or not? So I could confidently to persuade my wife to own a new U2723QE.  
U2723QE, U2520DR, MacBook Pro, daisy chain