so, what are the trade offs with different real time data syncing methods?

hey folks, im trying to nail down the best ways to keep data in sync across multiple clients in real-time. we're building a collaborative editing tool, and ensuring everyone sees the latest changes instantly is crucial. i've been looking into things like WebSockets, Server-Sent Events, and even some pub/sub patterns with Redis. each seems to have its own performance characteristics and complexity. what have your experiences been? when would you pick WebSockets over SSE, or is there a simpler approach for certain use cases? curious to hear your war stories and best practices for interview prep or real-world scenarios.