They can browse your private projects though so nobody in the right mind would use them to run cutting edge business.
If you are wondering what's the Auto DevOps - GitLab Auto DevOps eliminates the complexities of getting going with automated software delivery by automatically setting up the pipeline and necessary integrations. You can find out more info at the landing page [1] and the documentation [2].
If I had all of the source code from any of the FAANG companies what would I do with it? The only one that may be valuable is Google and I could make a killing from knowing how to do SEO. But even then it would take an army of very smart developers to figure it out.