In the other modes "all windows" and "only current workspace" you can start and leave Present Windows via their respective key shortcut. In "only windows of current program" it only toggles the start but you cannot leave via shortcut. But does works via screen edge. KDE Plasma Version: 5.25.3 KDE Frameworks Version: 5.96.0 Qt Version: 5.15.5
Confirmed "Toggle Present Windows (Window class)" -- Ctrl+F7 doesn't toggle it just invokes the effect. "... (All desktops)" and "...(Current desktop)" -- Ctrl+F10 and Ctrl+F9 both toggle the effect on and off. (Default global shortcuts used) Operating System: KDE neon 5.25 KDE Plasma Version: 5.25.3 KDE Frameworks Version: 5.96.0 Qt Version: 5.15.5 Kernel Version: 5.15.0-41-generic (64-bit) Graphics Platform: X11 Processors: 2 × AMD A6-6400K APU with Radeon(tm) HD Graphics Memory: 7.7 GiB of RAM Graphics Processor: AMD CEDAR Manufacturer: NOVATECH LTD Product Name: BB-64004H System Version: V1.0
X11 only, works OK in Wayland
Adding the x11-only keyword