Interesting. Thanks for sharing.
How did the team prioritize which parts of the app to modernize first and what criteria did they use?

How did the team measure the impact of modernization on customer satisfaction, app performance, and feature delivery speed?

How did the team ensure consistency and alignment across different product teams working on different parts of the app?

What are some of the best practices and lessons learned from modernizing such a large-scale app and how can they be applied to other apps?