Which indicator suggests that micro frontends are needed on the project?

The indicator that points to the need for micro frontends is the complexity and scale of the project, namely:

• A large team of developers working on different parts of the frontend, where independent development and deployment are required.
• Different business units or functional areas that are logically divided into separate applications.
• The need for independent updating and scaling of parts of the interface.
• Different technologies or stacks that are desired to be used in different parts of the frontend.

If the project becomes too monolithic, difficult to maintain, and releases slow down due to dependencies between parts, it is a signal to implement micro frontends. They allow breaking the frontend into independent modules that develop and deploy separately.