It's clear that the decrease in the number of Bitcoin moving around / exchanging hands is due to a growing awareness among investors of the importance of securely storing their Bitcoin. As more people became aware of the risks associated with keeping their Bitcoin on exchanges, shitchain bridges or even in hot wallets, they are taking steps to move their funds into more secure forms of storage. This is a positive development that implies people becoming more savvy about managing their own Bitcoin and taking steps to protect It.
It's also important to remember that even though centralized exchanges play a legitimate role in the Bitcoin ecosystem, Bitcoin was never intended to be custodied by a third party. The decentralized nature of Bitcoin means that individuals are ultimately responsible for the safekeeping of their own funds, and it's crucial for people to take steps to protect their networth and retain control over their own Bitcoin.