Simply put, whenever you hover over an action, the tooltip will give you a hint of what the keyboard shortcut is.
A good example is how in Linear, every action that has a shortcut, will show you it in the tooltip
Example in Linear: (Shows “C” as the shortcut”

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Completed
Feature Request
10 months ago

QarthO
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Completed
Feature Request
10 months ago

QarthO
Get notified by email when there are changes.