Path is a feature that can be used to visually see the sales stages on an opportunity page. Path can include guidance and key fields for each stage to help users move opportunities along the sales process. Guidance can provide tips, policy information, or best practices for each stage. Key fields can display important fields that users need to fill in or update for each stage.References:https://help.salesforce.com/s/articleView?id=sf.
path_overview.htm&type=5