GitHub has had customer visible incidents large enough to warrant status page updates almost every day this year (https://www.githubstatus.com/history).
This should not be normal for any service, even at GitHub's size. There's a joke that your workday usually stops around 4pm, because that's when GitHub Actions goes down every day.
I wish someone inside the house cared to comment why the services barely stay up and what kinds of actions are they planning to do to fix this issue that's been going on years, but has definitely accelerated in the past year or so.
It's 100% because the number of operations happening on Github has likely 100x'd since the introduction of coding agents. They built Github for one kind of scale, and the problem is that they've all of a sudden found themselves with a new kind of scale.
That doesn't normally happen to platforms of this size.