I haven't heard anything definite about a second season. Usually, it depends on various factors like viewership, critical reception, and the availability of the cast and crew. We just have to stay tuned.
It's a bit of both. 'Queen Charlotte' is a fictionalized account based on real historical figures. While the core characters like Queen Charlotte did exist in history, the show takes creative liberties in storytelling, such as elaborating on relationships and events in ways that may not be strictly documented. So, it's not entirely fact but has roots in historical facts.
In reality, the story of Queen Charlotte has a mixture of truth and fiction. While it may draw inspiration from real events and people, it's likely been embellished and adapted for storytelling purposes.