custom field inside post text

I need to add a custom field to a post within the Gutenberg paragraph block, instead of doing it by entering it in the custom fields section under the post (via Screen Options -> Custom Fields).

Something like this:
Lorem ipsum [custom-field-location] and then the rest of the text.

[custom-field-location]

As I will be importing a lot of posts automatically all with different values for a custom field and therefore need to be able to set the custom field within the post text.
Is this possible and how can this be done?

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