Windows has interesting ways of treating a pen that are considerably different than what you’ll find on most modern interfaces on Linux(KDE/GNOME).
This is just a small collection of things i noticed while using Windows on my 2-in-1. Also my Wacom Tablet.
Under windows the stylus takes a role similar to that of a finger at some points where you can use it to scroll and some times it acts like a mouse where it is used to click and drag. Meaning the behaviour and treatment of this device is completely separate to just “mouse” and just “touch”
Due to sometimes the buttons on the stylus being hard to reach one feature windows implemented was tap and hold as an alternative way to open the right click menu. Obviously this is not ideal on all scenarios like for example Krita, however it is quite useful if you main method of interaction is a touch screen and a pen(as it can be when someone is using a 2-in-1 a surface tablet or general tablet).
Depending on how you see it it can also be an accessibility issue.
KDE has a special cursor that only appears when using a stylus, GNOME unfortunately doesn’t.
This is simply a neat feature since a stylus is not a mouse and not a finger.
When tapping with a stylus on windows you get a “droplet” effect.
In addition to that when scrolling to the bottom of a list and going further down a drag effect appears on the window and when let go it immediately bounces back on its original position, almost like holding back a spring.
it is simply easier to resize windows with a touch display under windows 11 simply because the touch zones (aka the window borders you drag to resize) acts as if they are bigger than they visually are when touching the display with either a stylus or a finger.