That cuts both days, a Windows developer trying to port a project to Linux would be justified in concluding the filesystem locking semantics are horribly broken and non-existent.

I came from windows and found fewer problems when working on Linux. The problem with deleting files is something everybody will run into at some point. I don’t think what you describe is as common. I have never had it or heard it described as a problem when working in an organization which made software running on Linux and Windows.

The path separator, drive letter and text file line endings get me. But back when I switched to Linux for development it was the very slow file searches on Windows. I am fine with either macOS or Linux. Not windows.