While JSX is widely adopted and generally preferred in React development, there are a few situations where using JSX might not be the best option. For example, performance-critical applications: While the performance impact is generally negligible, in extremely performance-sensitive scenarios, skipping the JSX transformation step might provide a slight advantage.
However, it's important to note that for medium-sized or larger projects, using JSX is generally recommended due to its readability, maintainability, and widespread adoption in the React community. The benefits of JSX, such as improved code readability and easier interpretation of component hierarchy, usually outweigh the potential drawbacks in most real-world scenarios.
https://www.reddit.com/r/react/comments/1bmfctb/when_can_you_skip_jsx_in_react/
https://www.reddit.com/r/react/comments/1bmfctb/when_can_you_skip_jsx_in_react/