Is Blackstone buyside?

Could you please clarify whether Blackstone is considered a buyside entity in the financial industry? It's important to understand the distinction between buyside and sellside firms, as they play different roles in the investment process. Buyside firms are typically investment managers or asset owners that make investment decisions on behalf of clients or for their own portfolios, while sellside firms are usually broker-dealers or investment banks that provide research, trading, and other services to buyside clients. Given Blackstone's history as a private equity and alternative asset manager, I'm curious to know if it's classified as a buyside firm.