https://matterport.com/gallery/bclm-tollhouse
The "dollhouse" view is really handy for being able to get a sense of the space.
The earliest I am aware of was a specialized mini "cart" studded with video cameras that one would roll around the place and will get a textured 3D model that can then be walked around, Doom-style. It was made by a Vancouver startup was back in mid '00s.
There is also a specialized handheld "scanner" gadget that was marketed towards police use for capturing crime scene details. You'd just wave it around and see the resulting 3D phtogrammetry capture in real-time. Missed a bit - go back a wave a bit more. This was in the early '10s.
I'd imagine that this has been ported to smartphones already, because they now have sufficient sensor, storage and processing capacity for that.
I definitely feel like no one has won the market yet. Having something available or somewhat good isn't market dominance.
Or what Neato does with all these floor plans on their servers ...