GNOME keyboard shortcuts are a bit arcane, unknown.
Windows ones are more like a standard due to 90%+ market share.
I propose changing default shortcuts as below:
- Super+E - launch Nautilus
- Super+D - hide/show all windows
- Ctrl+Shift+Esc - launch System Monitor
- Shift+Super+S - "Copy a screenshot of an area to clipboard"
- more i might've omitted