The issue is that Intuit updated the component that loads the menu items and apparently didn't test their update very well.

It turns out Intuit published the updated component with a switch turned on that creates a debugging log file every time you open or close a company file, which is when the menu items for the Excel payroll reports are added and removed.

The log files are saved in the folder C:\Temp\ and if that folder is not present then the code appears to choke and the menu items are not added.

While the C:\Temp\ folder doesn't exist on most computers, it's a common folder many developers create, and I just happened to have it on my computer as well. And so, after installing the 2021 patch, I didn't see the issue you are seeing, but I did notice the log files being created in my temp folder. When I renamed my temp folder to something else and launched QB again - no menus! Then when I returned the name to C:\Temp\ - menus!

So, to fix Intuit's little blunder, create a C:\Temp\ folder on your computer and then restart QuickBooks and you should see the menu items again.