About six years ago, I walked into a local hospital to interview for a DE role and it was very clear that their definition of DE was different than mine. The whole dept worked in nothing but SQL. I thought I was good with SQL, but they absolutely crucified me on SQL and data architecture theories. I ended up getting kicked over to a software engineering role, doing DE in another capacity, which made more sense for me.
Only now I'm hearing that they're migrating to other tools like dbt and requiring their DEs to learn programming languages.
There's definitely some overlap, where companies are producing fundamentally data driven user experiences, such as user-visible analytics or live recommendations. But that's niche.