You STILL can't rely on GA4

The short version hasn’t changed since You can’t rely on GA4.

Consent banners mean a chunk of your visitors are never recorded at all. Modelled data fills in a chunk of the rest. Point two different analytics tools at the same website and you’ll get two different numbers, and both of them will look equally confident about it.

Use it for direction. Don’t use it for truth. And count your enquiries separately, somewhere the software can’t round them off.