Immediate Loading: The Gold Standard?

David, a dentist, asks:

It seems like immediate loading is becoming the gold standard in dental implant placement and restoration.

My understanding is that for single free-standing dental implants all you have
to do is place a temporary crown that is out of occlusion. I see more
and more of these cases being done. With all the new surface coatings
on dental implants available now, this makes sense because
osseointegration is much quicker. What are your experiences? Am I correct that all you have to do is place a temporary crown that is out of occlusion? Thanks.