I wish Microsoft would invest more in improving it - especially since Sourcegraph can't search private repositories, leaving GitHub's tool as the only real option for many codebases.
You can index private repos with Sourcegraph, but it's a paid feature ($19/mo/user+).
Do you have a source for this? I would love to read more about it.
In the doc of the Zoekt repo, it says
> What does cs.bazel.build run on?
> Currently, it runs on a single Google Cloud VM with 16 vCPUs, 60G RAM and an attached physical SSD.
https://github.com/sourcegraph/zoekt/blob/main/doc/faq.md#wh...
so at least they were using Zoekt up until a certain point in the past.