For the other comments who wonder. in their announcement [1] they said that this is for beta trial and then once they are ready it will be integrated into main

For the other comments who wonder. in their announcement [1] they said that this is for beta trial and then once they are ready it will be integrated into main github search [1] https://github.blog/2021-12-08-improving-github-code-search/ https://github.blog/2021-12-08-improving-github-code-search/