I have been trying to solve this too.. Replying in hopes maybe we can help each other if it gets solved
I am waiting to hopefully hear back from a rep on here too..
For reference I am using Lenovo Thinkpad T16 with AMD
For me, it initially did show up back at the start of November, but I had to do a Restore because it made my speakers go crackle and made it very hard to do online calls over zoom, or listen to music with spotify
So now that there has been several updates since the initial release, I am now on break until the start of January I wanted to upgrade again to see if my issue has been solved yet
Every time I went into Windows update 23H2 was there and ready, I had to keep pausing it so I could do other updates for my computer.. but now that I was actually willing to update again the 23H2 update disappeared... it still shows in update history that i did it at one point, so it is registered that I can
But I confirmed in Settings > About and I am still on 22H2... I have tried multiple suggestions like listed here and none are allowing me to update via Windows Update... I am nervous to update right from Microsoft website without more clear instructions as I did that once before with Windows 10 and whatever version I got was so bare bones I lost all drivers, no wifi or anything