Seems pretty conclusive. Very similar story when they bought skype.
It got worse around April/May this year, while that graph stops at February.
I have an Ops background and I strongly suspect they were given a stupid timeline for the Azure migration.
I've got to believe Microsoft have decent Ops people but the management wanted to move faster than was reasonable and screwed it up. Move one thing at a time and double check it all works and you can do a migration like this.
* There's a huge disconnect between the actual product and what was sold to the buyer. It could be that the product was a borderline fraud, or it could be that the product was actually much better quality than the expectation on the buyer's side, but the buyer isn't interested in most of the product.
* Fear spreads in the acquired company that their product will be discontinued or reshaped into something else.
* The pay is good, probably much better than before the company was bought.
* Many internal teams end up lacking real purpose and try to insert themselves into every new internal project only to obfuscate their irrelevance.
This leads to some pathological developments, where the teams previously working on acquired products start doing a lot of useless, for-show work. Internal initiatives sprout like mushrooms after a summer rain, but they are all plagued by very broad (and mostly irrelevant) team involvement, duplication of existing products / services, and fear of being discovered. And while there are plenty of such initiatives, their role is to be a superficial distraction. In reality, everyone is afraid to touch the old code or do any sensible integration because it could lead to blanket firing of a lot of people. The middle-management behavior becomes a sort of exchange of favors, where everyone is afraid that the other can blackmail them into losing their job, and so everyone is trying to be extra nice by offering a slice of a pie to another manager.
What this leads to, in reality, is insane inertia (often despite highly shortened software release cycles), astronomic amounts of unmitigated tech. debt, opacity in communication with management, persecution of those who genuinely want to improve the system.
Based on this, my prediction is that Github will not survive. Just like Skype didn't. Somehow or other, Microsoft will find a way to replace the product with... MS Outlook with a new skin.
I always figured these problems were directly related to the migration.
I'm sorry but this made me laugh out loud. That isn't true at all, this has been going on for years. This conversation[0] from six years ago has discussion about the outages starting to become much more frequent in December 2019. It has never gotten better in that time, it's just continually degraded.
Most people work around it by self-hosting github (which has other problems but uptime aint one).