Low code ETL tools (informatica, Appworx, talend, pentaho, ssis) were the original services for ELT/ETL. A lot of progress was made to go towards ETL-as-code starting with Airflow/Luigi. Going back to low code seems backwards as this point. (I have used all of the above tools in my 15+ yr career. Code as ETL was a huge industry shift)
https://successfulsoftware.net/2024/01/16/visual-vs-text-bas...
TLDR: Best depends on the situation and the people involved. Given the wide range of both situations and people, I think there are is plenty of room for both approaches.