Should be 20H1. Now a question, I remember one month ago it said to update to 11. But now where can I find it? Is it possible that it has switched to a later version of win10? This would be like wonderful, but unlikely I believe
If you can't find where it says it will update to Windows 11, then it seems the Registry hack has worked, hasn't it?
The only update ahead should be Windows 10 version 21h2 - since that's what you entered in the registry.