STEPS TO REPRODUCE
1. go to kde system settings -> mouse & touchpad -> touchpad 

OBSERVED RESULT
page is empty.

EXPECTED RESULT
touchpad settings should be visible.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 40
KDE Plasma Version: 6.1.4
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.10.7-200.fc40.x86_64 (64-bit)
Graphics Platform: Wayland


$ cat /proc/bus/input/devices
I: Bus=0018 Vendor=04f3 Product=31ad Version=0100
N: Name="ELAN2841:00 04F3:31AD Mouse"
P: Phys=i2c-ELAN2841:00
S: Sysfs=/devices/platform/AMDI0010:00/i2c-0/i2c-ELAN2841:00/0018:04F3:31AD.0001/input/input7
U: Uniq=
H: Handlers=mouse0 event4
B: PROP=0
B: EV=17
B: KEY=30000 0 0 0 0
B: REL=3
B: MSC=10

I: Bus=0018 Vendor=04f3 Product=31ad Version=0100
N: Name="ELAN2841:00 04F3:31AD Touchpad"
P: Phys=i2c-ELAN2841:00
S: Sysfs=/devices/platform/AMDI0010:00/i2c-0/i2c-ELAN2841:00/0018:04F3:31AD.0001/input/input9
U: Uniq=
H: Handlers=mouse1 event5
B: PROP=5
B: EV=1b
B: KEY=e520 10000 0 0 0 0
B: ABS=2e0800000000003
B: MSC=20



ADDITIONAL INFORMATION
the touchpad settings are shown correctly when openend directly via the terminal:
$ kcmshell6 kcm_touchpad

the touchpad works flawlessly.

jfyi: the mouse settings are displayed. the touchpad is recognized as a mouse there, though there is no mouse attached. of course only the more generic mouse settings (as opposed to the more detailed touchpad settings) are available under the mouse section. i guess treating the touchpad additionally as a mouse when there is in fact no mouse attached is intended behavior for fallback reasons?