This task can be performed using Fuego
A GUI Client for Firestore & Firebase Auth
Best product for this task

Fuego
dev-tools
Fuego is a desktop app that simplifies Firestore and Firebase Auth management, offering bulk actions, efficient data import/export, background tasks, Point-in-Time Recovery, custom dashboards, advanced queries, and emulator integration for a faster workflow.

What to expect from an ideal product
- Fuego's bulk actions feature lets you update, delete, or modify thousands of Firestore documents at once instead of handling them one by one
- The app runs heavy operations in the background so your computer stays responsive while processing large datasets without freezing up
- Built-in data import and export tools move massive amounts of information quickly between different formats and your Firestore database
- Advanced query capabilities help you target exactly the documents you need for bulk changes rather than processing everything
- Direct integration with Firestore emulator allows you to test bulk operations safely before running them on your live database