Nitpick: React compiler is not a transpiler. JSX needs to be transpiled, and that's usually done by TS compiler. React compiler is another optional thing on top that's relatively very recent.

https://react.dev/learn/react-compiler/introduction#what-doe...

All compilers translate one language to another language. Historically compilers targeted lower-abstraction languages than the source language. "Transpiler" is a compiler whose input and output abstraction levels are similar.

The React cinematic universe has a habit of repurposing existing terminology, but they're both transpilers, to the extent that "transpiler" is even a word.