If you haven't use the Task View function in your windows 10 you should try it out, you can find the Task View icon on the right of the Windows icon. Once click on it you will see the task view screen that allows you to switch between multiple Desktops within each Desktop it's a unique working environment, additional Desktop can also be added. To quickly switch between each desktop press Ctrl + Windows Key + (Left or Right) give that a try now, hopefully you find this shortcut handy!

To quick accessing the notification panel in windows press Windows Key + A on your keyboard. After pressed the key combination notification panel will be presented on your right-hand side (usually), you can toggle various settings on and off like WiFi, Bluetooth, Airplane mode, adjust your screen brightness etc.

To quick open file explorer for accessing your folder or files press windows key + E (press both keys at the same time) on your keyboard. Windows key can be found at the bottom left corner of your keyboard usually between Ctrl and Alt key.