Hi,
I noticed an anomaly in my quick settings panel with regard to the date being displayed that I took some images of for reference, shared at the bottom of this post. It appears to me that it's a bug and I only noticed it because my Samsung device prior to switching to GrapheneOS always showed the date, but in this case it only shows after the full expanding of the quick settings panel in image #2 is executed. Have a look:
https://i.postimg.cc/J4Mc0C3L/1.png
https://i.postimg.cc/pXs8dhXf/2.png
https://i.postimg.cc/vZDnxYcp/3.png