Try
- Launchpad key: F4
- Spotlight: ⌘ + Space
- Mission Control key (same as Cmd +bonus answer): SpaceF3)
- Mission Control keySearch file on finder (bonus answer): F3⌥ + ⌘ + Space
* Please note that
- ⌘ is same as Cmd
- ⌥ is same as Option or Alt.
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