What is Bitcoin Gold (BTG)?

Could you elaborate on Bitcoin Gold (BTG)? I've heard it mentioned in the cryptocurrency space, but I'm not entirely sure what it entails. Is it a fork of Bitcoin? What are the key differences between Bitcoin Gold and its predecessor? How does it aim to improve the Bitcoin network? And what are some of the key features or benefits that Bitcoin Gold offers to its users? I'm curious to know more about its underlying technology and how it fits into the broader cryptocurrency landscape.