My Dell XPS 8930 is not getting automatic update notification for Windows 11 Pro - yet!!!

I have my XPS 8930 - with Windows 10 Pro.  About 6 months back, I had a notification to get updated to Windows 11 PRO.  I declined that at that time and kept my Windows 10.  

Now... I would like to update to Windows 11 - and I am not getting any notification even with checking for updates serveral times!  What do I do to get automatic notification and update to Windows 11.