Where does GitHub even make most of their money? Their compliance posture makes them a non-starter for any regulated industries (which is atypical for a Microsoft property, generally MS is the market leader for compliance in all of their products).
Places might be officially regulated, but neither government agencies, healthcare, finance or defense industries are as strict as you think. People have to get stuff done, and most are usually quite incompetent in these protected industries.
Representatives from the Dutch government recently had a chat with representatives from Forgejo because they are quite interested in migrating their SCM infrastructure from Github to Forgejo.
And trust me, they are running a lot of public and private repositories.
And there are many more orgs and govs throughout Europe doing similar things because there's a (growing) zeitgeist here that the Trump administration nor any American SaaS company can be trusted. This started, by the way, after Microsoft suspended the ICJ from using Microsoft 365 on orders from the White House.
Everybody now is like "Hey, we can take something like Kubernetes which is open source and is backed by a worldwide community, and you know like OpenStack which is open source and is backed by a worldwide community and we can build our own computing platform and deploy services and online communities and stuff on top of that"
And I was like "Wait, you guys are realizing that NOW?!? I've been an activist and part of a movement urging you all to try and be less dependent on US Big Tech and focus more on decentralization for YEARS"
Like you I am really happy things seem to get rolling now, though :)