So apparently the Grand Egyptian Museum will be completed in coming months. Not much is known for now as the organizers prefer to keep the project away from the spotlight.

https://edition.cnn.com/videos/business/2023/06/16/exp-grand-egyptian-museum-richard-quest-061603pseg1-cnni-business.cnn

There's no official website, though there is some independant fan-made website : https://grandegyptianmuseum.org/ which states the date and other info :
Now, however, we believe that the late-2023 target is likely to be met.