Use case matters.

I use a SQL databases as needed. I've used Postgres, Sqlite, Duckdb, Json files with AWS Athena, Oracle enterprise for ERP systems (a multitude of schemas and objects with interoperability), and others.

I'm currently, deploying Duckdb with AWS S3 Tables (Iceberg) to see how it fits for a use case I have.

IT is great and always changing. Keep trying new things.

Cheers