Support alternative platforms and protocols that are decentralized or federated. This helps reduce the control and power of any single platform. Things like Mastodon, Bluesky, ActivityPub, and Solid aim to give more control to users. Push platforms for transparency around their algorithms and content moderation. Understanding how their systems work can help identify issues and demand change. Regulation may be needed here. Pay for services when possible to avoid ad-based business models.
