Hi, I am using the stylus H1 in Windows and Android and it works. In Windows it depends much from the App you are using. With some it works perfectly, with others poor. I assume that's a question how good an App is programmed for a stylus. Also the quality of palm rejection depends on the app. A problem with palm is that it works if the stylus is in contact with the screen but not if the stylus is away from screen to go to another position. I prefer apps were the touch and stylus can be put on and off manually.
one more hint. With the buttons of the H1 stylus I am kind of confused. With some apps the first button works. The second button does not work. I tried to change all settings but it didn't help. Maybe its an issue with the driver as Chuwi uses the Windows standard driver.