[warent]

I worked for a little bit with these guys on this product called phrHero which focuses on making these EHRs more much more patient-friendly using the new FHIR protocol. https://www.phrhero.com/

I don't work with them anymore due to some fundamental differences (it's been almost a couple of years) but thought it was related to what you're talking about and possibly something you'd be interested in.

Possibly the only way you could compete with Epic or Cerner is to innovate on things in a way that can't be denied. It wouldn't be the first time slow giant companies fall because they did not advance, but it is much harder because the barrier to entry is absolutely enormous.