There is no way to credit a Work or Edition by the pseudonym it was written and published under.
For example, Stephen King has published under two pseudonyms: Richard Bachman and Beryl Evans.
The only way I can credit these works in the database is to use Stephen King and then detail the pseudonym in the Annotation section. The result is the works published under Richard Bach or Beryl Evans can’t be separated in the Stephen King database.
This problem will be compounded when an author has written under numerous pseudonyms: the Hungarian writer Nemere István is a good example: https://books.discogs.com/credit/431691-nemere-istvan
Then you have a situation like husband and wife writers: Henry Kuttner and C. L. Moore who wrote under their individual names, wrote as individuals under various pseudonyms, wrote collaboratively as Henry Kuttner and C. L. Moore, wrote collaboratively under various pseudonyms, and also used these collaborative pseudonyms to publish their own individual works. It will be impossible to make sense of the works published under any of these pseudonyms.
Another scenario is the house pseudonym. A house pseudonym could consist of any number of writers producing works, either as individuals or in collaboration. This happened a lot during the Golden Age of Science Fiction, and many of these works have been subsequently republished and credited to the true author/s. There is no way to reflect any of these nuances.
Some author’s can use a pseudonym for a particular genre: Iain Banks wrote main stream fiction under this name, and used Iain M. Banks for science fiction works.
There are examples where a person hasn’t published anything under their real name, but has published works using multiple pseudonyms that are genre specific. Lumping all of these works under one name might not be helpful in the long term.