I agree with both comments. ~500 can surely build some amazing tech, smaller teams have done more. I personally do think there's still a lot of relatively low-hanging fruit left, especially with the boom of possibilities due to AI, or simply what one can do with modern CPU/GPU performance, new browser APIs, modern tech factors, etc.
I also do agree and think leadership talent and vision in a lot tech companies is painfully lacking. This are the companies that could burn some money and use their wedge in the market to build some really cool things, but they wont. I guess to some degree, ironically, the money they're making might be part of the problem.