Neon is SQL. It's a serverless platform built on top of Postgres, so it supports standard SQL tables, joins, and queries. It isn't a NoSQL or document database.
Because Neon is Postgres under the hood, any tool that works with Postgres works with Neon, including BI and dashboarding tools like Draxlr. You can connect Draxlr directly to your Neon project and start building dashboards without changing how you query your data.