When I investigated sg for former gig I found out that bazel was still not supported. How does uber uses it for their monorepo in that case?
Here's some docs on Bazel support for Java/Scala precise code nav: https://sourcegraph.github.io/scip-java/docs/getting-started.... Any languages you're looking for in particular?
So core code navigation functionality ought to work. There are some issues with different language features (macros, newer C++17 and C++20 features), as well as robustness (crashes on indexing certain code) but we're looking into bringing C++ support up to par with other languages.