Make a list of all the customer support requests you get and order them by frequency of request. Likely there will be a bunch near the top that are questions/c

Make a list of all the customer support requests you get and order them by frequency of request. Likely there will be a bunch near the top that are questions/confusions that could be prevented if the user was more informed. Highlight the answer to those questions in your onboarding flow, especially in emails and in app messaging.