Turning "Firstname Lastname" Album Artists into "Lastname, Firstname" Album Artist Sort

There are several solutions already available in this forum.
Please use the search function with words like
swap firstname lastname

And please be aware the many exceptions that exists beside group names, like artists with multiple parts in the name as "The Artist formerly known as Prince" or combinations like "Bob Marley & The Wailers".

BTW: Do you remember your own similar question here:

including the Howto answer: