@stevelieber They blame XAML code. Their OS is bloatware. All is being rewritten with XAML.

Mozilla had to drop XUL from Firefox.

But if it's true they generate so much code with word predictors, it'd be even worse. Bloatware and slop.

@Fedihacker @stevelieber The latest XAML release was in 2019. Knowing Microsoft, that means it's probably barely used anymore.

@fcalva @stevelieber They blame XAML: https://www.neowin.net/news/microsoft-finally-admits-almost-all-major-windows-11-core-features-are-broken/

The link above is in a reply to the same original post of this thread.

Neowin released an update on December 3rd: Microsoft admits major Windows 11 25H2 UI features broken too alongside 24H2 on some PCs https://www.neowin.net/news/microsoft-admits-major-windows-11-25h2-ui-features-broken-too-alongside-24h2-on-some-pcs/

It seems they call it now WinUI, but it's still XAML. https://github.com/microsoft/microsoft-ui-xaml

They added preloading to the file explorer and it still is sluggish and proprietary software spying on you.

Tested: Windows 11’s ‘faster’ File Explorer (preloaded) is still slower than Windows 10, and uses additional RAM https://www.windowslatest.com/2025/11/28/tested-windows-11s-faster-file-explorer-preloaded-is-still-slower-than-windows-10-and-uses-additional-ram/

Microsoft finally admits almost all major Windows 11 core features are broken

Microsoft has confirmed that Windows 11 Shell and every associated core feature and element are actually broken, and have been like this for many months.

Neowin