Looker Studio: someone builds the report, everyone reads it
Looker Studio follows the classic reporting model. An author hooks up Google sources such as GA4 or BigQuery, lays out a dashboard with drag and drop, and shares it with anyone for free. The questions are decided in advance by whoever built the report, and readers filter within that frame. For marketing performance, client reporting, and simple scorecards, that model works well and costs nothing.
What it cannot do is answer a question nobody anticipated. Gemini helps authors with calculated fields and summaries, but readers get no search box for asking something new, and there is no data model keeping answers consistent across reports.