I'm sure no other tech company is like this.
I think technologies like the Windows kernel and OS, the .NET framework, their numerous attempts to build a modern desktop UI framework with XAML, their dev tools, were fundamentally good at some point.
Yet they cant or wont hire people who would fix Windows, rather than just maintain it, really push for modernization, make .NET actually cool and something people want to use.
They'd rather hire folks who were taught at school that Microsoft is the devil and Linux is superior in all ways, who don't know the first thing about the MS tech stack, and would rather write React on the Macbooks (see the start menu incident), rather than touch anything made by Microsoft.
It seems somehow the internal culture allows this. I'm sure if you forced devs to use Copilot, and provided them with the tools and organizational mandate to do so, it would become good enough eventually to not have to force people to use it.
My main complaint I keep hearing about Azure (which I do not use at workr)