Comment by jen20

No - almost all of the software I work on is at least one of:

- proprietary,

- command line tooling,

- single-platform.

A good example of what I consider to be a great approach (not mine) is Ghostty, which has fully native UI per platform and a shared core between platforms. JetBrains tools also go out of their way to integrate with platform conventions everywhere.

An example that cross-platform toolkits usually get wrong: cursor navigation in text fields. Home and End do different things on different platforms, and on macOS, basic emacs/readline bindings are supposed to work in all text entry fields.

It’s worth noting that this extends beyond GUIs - command line tools written in Go tend to use “package flag” which is native nowhere. The standards between Windows (which has two, in cmd and powershell), GNU-style and “legacy” Unix style are just not reconcilable without implementing platform-specific behaviour.