I'm going to awkwardly bring up that we have avoided all github downtime and bugs and issues by simply not using github.

Our git server is hosted by Atlassian. I think we've had one outage in several years?

Our self hosted Jenkins setup is similarly robust, we've had a handful of hours of "Can't build" in again, several years.

We are not a company made up of rockstars. We are not especially competent at infrastructure. None of the dev teams have ever had to care about our infrastructure (occasionally we read a wiki or ask someone a question).

You don't have to live in this broken world. It's pretty easy not to. We had self hosted Mercurial and jenkins before we were bought by the megacorp, and the megacorp's version was even better and more reliable.

Self host. Stop pretending that ignoring complexity is somehow better.