Compared with Drift, who are all in on Sales use cases; Intercom is a bit more focused on the support vertical. Intercom is condidered the gold standard in chat widgets, and it can be customized and even integrated via API so you have give your customers whatever chat experience makes the most sense for you. You can filter and segment people in real time, and even engage people who might need help.
Sync your data to Salesforce and track your team as they move work forward. Set goals for timelines, response/cycle times, work in progress, and more. Any process, any object in Salesforce.