No dynamic pressure or eraser functionality with Surface Pro 6 Surface Pen Platinum.
Using Gimp 2.10.8 on Surface Pro 6 running Windows 10 Home with a Surface Pen Platinum. There is no dynamic pressure control when using the pen, and the eraser of the pen still functions as if it were the tip and draws instead of erases. I also noticed that the Surface Pen does not show up in the Input Devices list, only the "Core Pointer" is listed, which seems to behave as just a simple mouse.