You can write any possible SQL query in SQL, but you can't write all of them in an ORM (without falling back to native SQL queries)

SQL is strictly more powerful.

Sometimes it's also way more verbose.

So I agree that you should be able to leverage both tools, but they are not even remotely as powerful.

I every project we used ORM for, at some point we had to jump through hoops and write plain old SQL (depending on the language and framework that's simple or terribly complex), because we had to fix the n+1 query problem.

In every project, since more than 18 years!