Microsoft earned thst reputation with a lot of development and organizational practices that they've since abandoned. It may take people a while to notice, but today's Microsoft is not prioritizing stable software interfaces and backwards compatability.
It took a lot of testing to ensure existing software and hardware continued to work with new operating systems, and they're not doing as much testing anymore.
I have it on the top of my mind because it bit me twice in recent month. I had to do some PS work on some VMs that didn't have Internet access (beyond RDP). Sure, I can Alt+Tab to a browser on my machine, but at this point, why even have Get-Help? Contrast that with Emacs experience, where everything is documented, and documentation is easily accessible, off-line, and by default.
Well there are a lot of old school Microsoft haters. I used to know a bunch of Unix guys ~ten years ago whose unstated principle was that anything Microsoft did was unilaterally a bad idea (and everything Unix ever did was always the best possible way).
In my experience the tribal evangelism for AWS is... intense... and they've somehow convinced people to proselytize unpaid on their behalf. Having worked with both I'll occasionally mention Azure if only to revel at the spicy takes. Honestly though, I worked at that claims company I mentioned. Likewise the startup I work at today threw their hats in with AWS. Both were respectively good decisions, both bad in their own right. As ever, try to do everything and something is going to give.