As I understand it should be done here System -> Configuration -> Design -> HTML Head, however, although I have added the information there, it doesn't show up. Is there another way how to do it?
Hello @emailforin488e
You can add meta information from the CMS page configuration.
go to CMS pages of the home page and add meta information on meta-information tab
If you get the solution then please, "Kudos" and "Accept as Solution" for Token of Appreciation.