It seems they had a head start but are now facing stiff competition on all fronts. Software moat, GPU's for gaming, and its distant cousin datacenter compute. They rightfully invested their insane profits into many ventures, and how many of those have turned around into profit?
They are also a robotics AI company with Omniverse. They are also an AI company with Nemotron. They are also a bleeding edge network equipment company after the Mellanox aquisition.
They stand to make a lot of money if they succeed in every venture. Good for Jensen taking risks and driving innovation, I hope they succeed in chewing even 50% of what they bit off.