No, don’t worry about this GUID.
Go about as normal.
This GUID is for not just for Microsoft, It is in efivars to register their ‘unique’ efi thingies.
Lenovo for example has many registered. You can check with ‘efivar -L’ There should be many there even if you do not have a Lenovo. Unnecessary waste of time for us people.
Ignore it as it should be.