I know someone who builds Lego for therapy. He buys sets on an ongoing basis, some of which are well over 10,000 pieces (think of the Titanic). They take up a mass of space. I get that some sets are great for physical display, but it also gets costly building and giving them away.
There is already online free virtual Lego building with Bricklink Studio, but has none of the “handling” of the pieces nor seeing it in proper three dimensions.
The logical direction to take this is towards VR glasses type solutions, where you can see it in 3D (as if you were looking at the real model) and be able to pick up and place pieces (using virtual hands). A partnership between Lego and Apple would also have been a logical conclusion for this.
But, as far as I know, there is still no real working solution for this, despite lots of interest in it.
The video linked below shows an early prototype in action, but that was about 3 years ago. It was also discussed on Reddit in r/OculusQuest back then.