It is a factual matter, easily discovered through simple searches, that non-Western cultures often take a different approach. Including, literally, ancestor worship. I am not making a judgement on which is better. I believe there are multiple healthy ways of dealing with grief, and "mourn & move on" can be one, but not the only one.

This is very far from an obsessive interaction with a semi-emulated version of a dead person in VR. However things wouldn't have to be that extreme.

In cultures that practice it, it's not uncommon for a small shrine in the home to be setup. And yet that is of limited access to family located further away, so a digital form of this not bound to a specific location could also be of use to people from these cultures. There is no reason that such things couldn't compliment existing practices of honoring ancestors.