Sometimes, it sort of depends - I just recently read the Mrs Harris series and it was so immersed in British class culture that I had to look up the author because the book blurb said he was American and I wanted to see if I could understand where all that had come from (no apparent connection whatsoever).

Ditto Naomi Novik, reading the Temeraire series and have read the Scholomance, had a quick search as I was sure she must be English but no - deeply American as is her family and her husband. Guess she just does a lot of research.

Beyond having a specific reason like that though I’m not overly bothered to know much more about them - it’s their stories I want