Yes, it can be worth investing time to learn Angular, React, and Flutter, especially if you are interested in becoming a well-rounded and versatile developer. Each of these frameworks has its own strengths and is widely used in the industry, making them valuable skills to have. Here are some reasons why learning these frameworks can be beneficial:

Versatility: Angular, React, and Flutter target different platforms and use different programming languages (TypeScript for Angular, JavaScript for React, and Dart for Flutter). Learning all three will allow you to build web applications with Angular, web applications with React, and cross-platform mobile applications with Flutter. This versatility opens up more opportunities for you as a developer.

Demand in the Job Market: All three frameworks are in high demand in the job market. Companies are constantly seeking developers who are proficient in these technologies to build modern and efficient applications.

Community and Ecosystem: Angular, React, and Flutter have large and active communities. This means there is a wealth of resources, tutorials, libraries, and plugins available to support your learning and development journey.

Career Growth: Learning multiple frameworks demonstrates your ability to adapt to different technologies and challenges. It can enhance your career prospects and make you more appealing to employers who are looking for developers with a diverse skill set.

Solving Different Problems: Each framework has unique features and capabilities. By learning all three, you can choose the most appropriate one for specific projects and problem domains.

However, keep in mind that learning multiple frameworks can be time-consuming, and it's essential to balance your learning with your overall career goals and the specific projects you want to work on. If you're just starting, it might be beneficial to focus on one framework initially and then expand your knowledge to other frameworks as needed.

Ultimately, the decision to invest time in learning Angular, React, and Flutter depends on your interests, career aspirations, and the types of applications you want to build. Having a diverse skill set can be valuable, but it's also essential to build expertise in the areas that align with your long-term goals.

Reference: GPT-3.5