Less of a bug and more of a odd default setting. When creating a default panel and editing the task manager, the Task Manger Behaviour settings defaults to 'Show only tasks: From current screen: Disable'. This seems like an oversight, if you have multiple monitors it's counter-intuitive to have programs not on that monitor show up on the task manager; especially by default. It's also really annoying that instantly you have a full taskbar and it's hard to right click the actual taskbar (not the programs) in order to get into the Task Manager settings in the first place with this setting at its default. I can understand that it may be useful option for some (not arguing to take it away) but as a default setting 'Show only tasks: From current screen:' should be enabled by default. SOFTWARE/OS VERSIONS Operating System: KDE neon 6.0 KDE Plasma Version: 6.0.2 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 Kernel Version: 6.5.0-25-generic (64-bit) Graphics Platform: Wayland
It all depends on your expectations. Turning that option on only makes sense if you put one panel on each screen. But that's up to you; it's a manual thing you'd do. As such it doesn't make sense to do by default, sorry.