Is GitHub becoming increasingly unstable?

I have been noticing several issues with GitHub over the last few weeks, most of which used to work flawlessly a few months ago. The outages aside, a couple of annoying, super-recent experiences: Our release process involves creating draft releases before QA, and publishing them when ready. We published a new release today and team members from the US were able to see it as published while members from different countries still saw the release marked as a draft and not visible publicly. We only noticed it two hours after making our announcements. We had to unpublish and publish it again to fix it. Recently, a colleague noticed a number of unrelated changes while reviewing a diff on GitHub, which led to us reverting a merge, only to later notice that the commit itself had no issues and it was the GitHub UI.