As for in-person visits: Post 9/11 identification laws in the US changed, so the DMV requires an in-person visit in all 50 states and the District of Columbia. However, all other updates can typically be submitted through the mail, fax, a phone call, an email, or via an online portal.
Please note that there are a few exceptions: There are certain counties across the US that will require in-person submission of the Social Security name change request, to streamline the process due to the high volume of name changes that occur in the city.
Additionally, you will need to submit your Passport application in person if you're applying for the first time, if you've lost your current passport, or if your current passport has been expired for more than five years.