https://walabot.com/see-through-walls
This seems like a pretty good review:
If you want to splurge (or are willing to couple trips to the coffee shop), you could buy one (or two) of these:
https://www.homedepot.com/p/C-H-Hanson-Magnetic-Stud-Finder-...
I was tipped off to these by the someone in the construction industry. He buys a few whenever they're in stock, so that he can have them in every toolbox, lose them, etc.
Note that, once you find a nail head, you can just leave the magnet hanging in place. If you have two, you can hang both, then use a straightedge or chalk-line to mark the point between the two where you want to make a hole. The fancy radar puck thing can't do that. (Maybe, someday, fancy AR goggles will solve that problem, but we're a long way off from that.)
To be clear you probably wouldn't get a 3D view of the whole room, just a narrow window like a conventional stud finder.
The construction industry would hand over wheelbarrows full of money for a BLE phone-paired puck that located studs and pipes behind drywall. Someone could even sell a "pro" version that combined the data from multiple pucks to render a 3D point cloud of the inside of the wall on the user's phone.