I definitely think there is a delay in address changes being fully updated.

If you have multiple locations it can be perfectly acceptable to put the city name in the location. That might help.

Big brands even do this with neighborhoods/areas like “Brand Name West Edmonton”

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From GMB’s support docs:

>” All locations must have the same name **unless the business’s real world representation consistently varies from location to location**. All locations must also have the same category if they provide the same service. “