Filter query based dropdown based on another query based dropdown

can we filter results of a query based dropdown based on the results of another query based dropdown?
i want the user to be able to select a location and then sub locations.

This question has come up a few times in the past. Like here:

You can work around it with a Query Parameter and a Query Filter

And there is a feature request you can vote for here.

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Just linking a few more places this has been asked so as to help others in later searches.

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