Start with a small workspace: a notes page, a project database, and a place to collect reference material. This approach keeps the structure easy to understand while you decide how your work should be organized.
Notion is most useful when written context and structured information belong together. For a large team, compare guest access, upload limits, permissions, and the features included in the paid tiers. The free workspace and the AI trial are separate offers.
Read the official product and plan information before making a decision.