Well, when you're already paying Microsoft $/user/month for Intune, Teams&co. you might as well use Azure too.
Only one vendor relationship to manage, and I suspect you probably have to spend far less money than you do with AWS to get some personal attention.
Anyone that's had to deal with Microsoft will tell you this means nothing
If you can even get attention from someone, you'll be bounced between teams and people who barely know the products they are "supporting"
Don't get me started on the Azure and O365 management portals
The only worse support experience I've had was with Oracle where it could take days just to get the boilerplate "send us your logs" response on a Sev1 issue, despite the logs already being provided in the initial ticket
In both cases, this is while at F100 companies with millions of dollars of licensed software and premium support contracts
With Microsoft that takes several people working full time. Corporations tend to not want more of those relationships to manage.
Attention means an engineer who can fix the problem, not an off shore phone jockey paid to make you quietly go away.
In relation to everything you said in your post, let's just say "trust me, I know".
But you missed the point I was making.
The GP said "Makes me wonder why enterprises still flock there".
And anyone who's had to deal with enterprise procurement knows if you've got a vendor on the list then its easier to deal with that one than push for multiple.
And then there's the whole budgeting thing. If management can see you're already buying every single employee in the org a Teams license, then getting extra budget for some Azure toys will probably be an easier sell then "yeah, I know we're paying Microsoft a lot of money, but can we have some AWS too". Since in their eyes Azure and Teams licenses is the same thing, "money for Microsoft".
Sadly the tech desk experience in enterprises tends to fall low down the list, if it is considered at all.
Sure, in theory, if you've got a good CTO to fight your corner then YMMV, but not everyone does.
If anything, having only one vendor to choose from is a disadvantage.
I am talking about the most basic capability of a professional presentation tool like exists in Webex, or GotoMeeting or Zoom. And requested...
https://learn.microsoft.com/en-us/answers/questions/4410610/...
by more than 2000 requests across different microsoft discussion boards, including 1044 on one request alone....
Federal Cyber Experts Thought Microsoft’s Cloud Was “a Pile of Shit.” They Approved It Anyway.
https://www.propublica.org/article/microsoft-cloud-fedramp-cybersecurity-governmentAmazon doesn't and regardless nobody feels comfortable using Google, who knows when they'll discontinue a product we would rely on.
So not a lot left to choose from.
/s