How does the government sell bitcoin?

As a financial professional, I'm curious to understand how governments typically approach selling bitcoin. Given the decentralized nature of cryptocurrencies, does the government sell Bitcoin directly through its own agencies, or does it utilize exchanges and platforms? Are there specific regulations or policies that govern how and when governments can sell bitcoin? How does this process differ from selling traditional assets like bonds or stocks? Furthermore, how do governments ensure the transparency and accountability of their bitcoin sales, considering the anonymity associated with crypto transactions? I'm interested in gaining a deeper understanding of this process.