Use case

Using a Listener, Flutter supports the detection of pen pressure on Android, Chromium OS, on the web (using Chromium on Windows or Firefox on Wayland on Linux) and on iOS, but unfortunately, Desktop platforms do not seem to be supported by pen pressure nor the separation between PointerDeviceKind mouse, touch, stylus etc. This feature is required for any application processing pen input like handwriting apps or apps simply detecting different input devices (eg. Games which react differently on Mouse than on Touch)

Proposal

Simply implement it. It should be working same way as on Android, iOS and the web.