I wish that operating systems (Windows, KDE) placed transient notifications in a "notification area" like older Windows and Android (before Android added popup notifications), where they don't cover up your work (like Windows/KDE/Mac notifications), you can see at a glance how many and which notifications are present (unlike Windows's Action Center with popups disabled), and remain until explicitly dismissed or responded to (unlike the current disappearing notifications).
Sadly, on Windows 10, the bottom-left of the taskbar is already used for app launchers, and the bottom-right is already occupied with a clock, volume indicators, a "system tray" for background apps that you can't close, etc. It's even worse on KDE than on Windows, since there are a lot more applets in the bottom-right of my screen, and you can't control the order of icons in your system tray. Perhaps with Windows 11 moving apps to the center of the taskbar, a row of notification icons could be added to the left.
Sadly, on Windows 10, the bottom-left of the taskbar is already used for app launchers, and the bottom-right is already occupied with a clock, volume indicators, a "system tray" for background apps that you can't close, etc. It's even worse on KDE than on Windows, since there are a lot more applets in the bottom-right of my screen, and you can't control the order of icons in your system tray. Perhaps with Windows 11 moving apps to the center of the taskbar, a row of notification icons could be added to the left.