Finally realized what's happening. When you specify the date as ddd?MM/dd/yyyy it's whatever you've used in the ? field that Excel is using as the delimiter. Suspect it's probably working by accident rather than design ....
Just found what to me is a satisfactory solution. Specify your short date as ddd/MM/dd/yyyy and then it appears in the tray as Sun/02/18/2024, and is also correct in Excel with the '/'. Wife's PC has Excel 2016 (has Home and Business 2016 installed locally) and it works correctly now too.
I've tried making the same change as you and I get the day on the taskbar with the time. But with Excel (Office 2021) dates, the '/' is replaced by ',' - ie it now shows 18,02,2024 for todays date (UK format).
For a cumulative update, Windows first works out what parts of it you need so that the download can be tailored accordingly. I suspect a lot of the time is spent doing that, rather than actually downloading. I noticed an update recently where the download seemed to be stuck on 7%, and then...
I'm using the free edition 8.0.7690. It's now telling me version 8.0.7783 is available for download, but when I try that, I get HTTP Error 403, which means authentication was refused by the server.
My PC installed OK. Wife's PC, with same hardware, spent 20-25 minutes stuck on installing at 70%, then spent similar length of time after reboot stuck on 0% installing. No idea why but thankfully PC is back up.
The 3 systems I have which were on version 23H2 22631.2428 with Release Preview have all been offered the update. They were on Beta a while ago but we're now able to switch back to RP which I did a couple of weeks ago.
If I click on Advanced Network Settings, and then open up the adapter I'm interested in, it's there now. Same as post #3. Seems MS has moved it not removed it.