What happened to EthereumPoW?

Could you elaborate on the recent developments surrounding EthereumPoW? Specifically, I'm interested in understanding the circumstances that led to its emergence, the community's response, and any potential implications it might have on the broader cryptocurrency landscape. I've heard there were some disagreements surrounding the Ethereum network's transition to Proof-of-Stake, and EthereumPoW emerged as a fork. What are the key differences between the two? And how has the market reacted to this new fork? Your insights would be greatly appreciated.