This applies to any version of Start11 on my Windows 11 installation.
After installing Start11, currently V1.2 beta, my Start Menu has an extra entry of "Stardock Start11" listed above the "Start11" entry in the Stardock folder of my Start Menu.
https://1drv.ms/u/s!ArpXySjqs7lJj7t3b7zoswxp0gENRQ?e=97QNKm
I have used Revo Uninstaller Pro to completely remove all Stardock programs. I have then re-installed my Stardock programs, one at a time, and I still get an extra entry for Start11.
My computer came with Windows 11 Home and was upgraded to Windows 11 Pro. This problem was also there prior to the Pro upgrade.
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Edition Windows 11 Pro
Version 21H2
Installed on 02/11/22
OS build 22000.651
Experience Windows Feature Experience Pack 1000.22000.651.0
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I have another laptop computer that was upgraded from Windows 1 Pro to Windows 11 Pro. This laptop shows a single correct Start Menu entry of Start11, when Start10 was upgraded to Start11, in the Stardock folder.
Cheers.