Is Tornado Cash decentralized?

Could you please elaborate on whether Tornado Cash truly operates in a decentralized manner? I'm interested in understanding the extent to which its operations are free from central control or interference. Does it rely on a network of nodes that are not governed by a single entity, ensuring that transactions are processed and verified in a decentralized fashion? Additionally, are there any aspects of Tornado Cash's architecture or operations that may undermine its decentralization claims? I'd appreciate your insights on this matter.