Linking your Salesforce with Vega dramatically enhances results for client-related queries in the chat or for background outputs (meeting notes or email response drafts for example). Vega will access details in your Salesforce as well as tasks and notes.
Vega can also create or modify entities. For example, after a meeting, Vega can create notes, and suggest contact changes and new tasks that you will be able to push to your Salesforce. As another example, as your conversation with a client progresses by email, Vega can identify tasks and status and suggest updates to be pushed to Salesforce.
Contact information presented on the Contacts page is view-only for contacts imported from Salesforce. The same goes for notes and tasks imported from Salesforce on the Notes page and on the Tasks page. Data synchronization goes one way in these contexts: from Salesforce to Vega. Salesforce should be considered as the source of truth.