While the findings below are from 2021 the findings are still true.
US adults support increased health information access, want more data exchanged by clinicians, and improved data privacy. They prefer accessing health information via apps and support additional federal measures to improve health record exchange. The pandemic increased data-sharing support, and they're comfortable with unique identifiers to match EHR records.
While we haven't seen a ton of progress regarding unique identifiers that serve as a patient anchor from one EHR to another we are able to support the wants and needs of allowing patients to increase access to health information via the recent passing of the 21st Century Cures Act.
For the full article check out Pewtrust.org