The field of testing is broad and includes several subcategories, including load, performance, system integration, black-box, white-box, and system testing. While some of these testing areas benefit more from automation, others find that manual testing produces satisfactory results.
https://emperiortech.com/automated-vs-manual-testing-which-approach-is-right-for-you/
https://emperiortech.com/automated-vs-manual-testing-which-approach-is-right-for-you/