SUMMARY

When using "Invert Scroll Direction" for mice on Wayland, this actually does nothing. Natural Scrolling for touchpads, however, works fine. Libinput also reports "Nat. Scrolling" to be disabled.

STEPS TO REPRODUCE
1. Use a Wayland session
2. Select "Invert scroll direction" under system settings > Hardware > Input Devices > Mouse
3. Try scrolling in any window

OBSERVED RESULT

Scrolling direction does not change

EXPECTED RESULT

Scrolling direction to be inverted

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.22.0
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION

libinput information on my MX Vertical (which is actually reported three times).

Device:           Logitech MX Vertical Advanced Ergonomic Mouse
Kernel:           /dev/input/event9
Group:            10
Seat:             seat0, default
Capabilities:     pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   button
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   flat *adaptive
Rotation:         n/a


Device:           Logitech MX Vertical
Kernel:           /dev/input/event13
Group:            8
Seat:             seat0, default
Capabilities:     keyboard pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   button
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   flat *adaptive
Rotation:         n/a

Device:           Logitech MX Vertical Advanced Ergonomic Mouse Keyboard
Kernel:           /dev/input/event10
Group:            10
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a
Rotation:         n/a


Libinput information on my Steelseries Rival 100:

Device:           SteelSeries SteelSeries Rival 100 Gaming Mouse
Kernel:           /dev/input/event23
Group:            11
Seat:             seat0, default
Capabilities:     pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   button
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   flat *adaptive
Rotation:         n/a