Interesting topic, I am also looking for a replacement of my current dual monitor setup.
I agree that for professional work I wouldn't risk buying Asus or LG models. Currently I have two Dell monitors at 1920x1200 which have proved very reliable over the years. I used to have an Eizo monitor some ages ago (which is still working impressively well). BenQ seems to have good credibility as well.
The Dell U2723QE has very good specs but, coming from a screen resolution of just 94 PPI, I am concerned that 4K at 27" (which is a pixel density of 163 PPI) would make everything so small that would make presbyopia glasses inevitable for me. I suppose that you could use windows scaling to compensate, but I don't feel so comfortable about it...
I was also looking at this new monitor from Dell which has just been announced. A bit pricey I guess, but has good specs and gets rid of the annoying central division of dual monitors setup:
https://www.dell.com/en-us/shop/dell-ultrasharp-49-curved-usb-c-hub-monitor-u4924dw/apd/210-bgtz/monitors-monitor-accessories#tabs_sectionDoes anyone have any hands-on experience with such curved ultra-wide monitors for archviz work?