Is immutable decentralized?

Is immutable really decentralized?" I inquire, looking to understand the nuances of this concept. In the world of cryptocurrencies and blockchain technology, decentralization is often touted as a key feature, promising freedom from centralized control and increased security. But what does it mean for something to be truly immutable and decentralized? Does it simply refer to the inability to alter the records on the blockchain? Or does it go deeper, encompassing the distribution of power and decision-making across a network? I'm eager to delve into this topic and gain a clearer understanding of how these two principles intersect and shape the landscape of digital currencies.