My main gripe with windows is that it's gradually turning to adware/spyware after MS decided to go for that sweet data collection revenue. That also means a shift in the focus of the development of the OS, as it's not being developed for the benefit of the users anymore.
That, and software development processed are more tedious. Although today I'm sure I could find a workflow that works with WSL or vcpkg.
Edit: Oh, and everything turning to webapps on the desktop. Love staring at white canvas while it waits for a server response.