I have a use case to embed a lightning web component in a VF Page (in Classic) which includes a lightning-input-address component. The component includes the standard address lookup input (which searches for addresses for the user) functionality.
This component works when placed on a page in Lightning Experience. However, when embedded in a VF page via an Aura app, the search lookup component doesn't produce results when typed into. I've produced a simple version of the LWC with just the lightning-input-address component and found the same behaviour.
<template>
<lightning-record-edit-form
object-api-name="Contact">
<lightning-messages></lightning-messages>
<div class="slds-grid slds-gutters">
<lightning-input-address id="inputAddress"
required
show-address-lookup="true"
address-label="Address"
street-label="Street"
city-label="City"
country-label="Country"
province-label="County"
postal-code-label="PostCode"
></lightning-input-address>
</div>
</lightning-record-edit-form>
There's nothing in the Javascript of the component beyond importing LightningElement and exporting the module itself (but no other code)
By my reading of the documentation, this should just work. Is there a known limitation here?