I have post such a thread:
https://rog.asus.com/forum/showthread.php?114208-Is-there-a-release-date-of-PG27UQX#:~:text=Got%20a%....
Unfortunately, there is no any response from ASUS.
I never hear about this monitor again since the pandemic and it seems that now even the product page of PG27UQX is unreachable online.
I guess PG27UQX was cancelled. Could ASUS give a confirmation? Maybe the PG32UQ is the an successor?