I use chromium-ozone-wayland version: 96.0.4664.110
I start chromium-ozone-wayland with
/usr/bin/chromium --kiosk --noerrdialogs --no-first-run --enable-wayland-ime --autoplay-policy=no-user-gesture-required http://localhost:80

To check which pointer type is recognized by chrome following JavaScript code can be used:

// True if at least one coarse pointer device exists.
matchMedia('(pointer:coarse)').matches;
// True if at least one fine pointer device exists.
matchMedia('(pointer:fine)').matches;

As I understand it, websites adapt their style according to the detected pointer device of the browser.
A mouse or a touchpad is a fine pointer device. Touchscreens are coarse pointer devices.

My device has a touchscreen.
Observed behaviour:
Chromium detects neither a coarse nor a fine pointer device. If I connect a mouse it only detects a fine pointer device.
Expected behaviour:
Chromium should always detect a coarse pointer device as the touchscreen is always present.

Is there any flag I have to pass to chromium or anything I have to change in my system to fix this?