The KDE version is obtained by running kinfocenter → “Copy to Clipboard”
Operating System: Debian GNU/Linux 12 KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 Kernel Version: 6.1.0-17-amd64 (64-bit) Graphics Platform: X11 Processors: 2 × Intel® Xeon® CPU W3503 @ 2.40GHz Memory: 23.5 GiB of RAM Graphics Processor: NV98 Manufacturer: Dell Inc. Product Name: Precision WorkStation T3500
K Menu -> search for "system settings" -> click on "System Settings" -> Workspace -> Shortcuts -> System Settings -> KWin
Switch to Next Desktop -> Ctrl+Alt+Right Window to Next Desktop -> Ctrl+Alt+Shift+Right Switch to Previous Desktop -> Ctrl+Alt+Left Window to Previous Desktop -> Ctrl+Alt+Shift+Left
Notes:
I am not sure whether to use
Switch to Next Desktop -> Ctrl+Alt+Shift+Right Window to Next Desktop -> Ctrl+Alt+Right Switch to Previous Desktop -> Ctrl+Alt+Shift+Left Window to Previous Desktop -> Ctrl+Alt+Left
or
Switch to Next Desktop -> Ctrl+Alt+Right Window to Next Desktop -> Ctrl+Alt+Shift+Right Switch to Previous Desktop -> Ctrl+Alt+Left Window to Previous Desktop -> Ctrl+Alt+Shift+Left
Afterwards see which operation you do most and then assign Ctrl+Alt+<Right|Left> to that as it involves pressing less number of keys.
The KDE version is obtained by running kinfocenter → “Copy to Clipboard”
Operating System: Debian GNU/Linux 11 KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2 Kernel Version: 5.10.0-17-amd64 OS Type: 64-bit Processors: 2 × Intel® Xeon® CPU W3503 @ 2.40GHz Memory: 3.8 GiB of RAM Graphics Processor: NV98