Your comment explains exactly what happens when post-expiration companies like Google try to innovate:

Let’s be realistic here, google still pays out fat salaries. That would be more than enough incentive for me. I’d take the job and ride the wave until the inevitable lay offs.

This is why it takes a lot more than fat salaries to bring a project to life. Google's culture of innovation has been thoroughly gutted, and if they try to throw money at the problem, they'll just attract people who are exactly like what you described: money chasers with no real product dreams.

The people who built Google actually cared about their products. They were real, true technologists who were legitimately trying to actually build something. Over time, the company became infested with incentive chasers, as exhibited by how broken their promotion ladder was for ages, and yet nothing was done about it. And with the terrible years Google has had post-COVID, all the people who really wanted to build a real company are gone. They can throw all the money they want at the problem, but chances are slim that they'll actually be able to attract, nurture and retain the real talent that's needed to build something real like this.

If they backed a dump truck full of money up to my house I'd go work for them just like you. But I'd also be riding it out until the eventual layoff. What neither of us would be doing is putting in a decent amount of effort or building something cool.

Even if I wanted to work on something cool I know Google would likely release it, not maintain it, and then kill it in a few short years. So even if I was paid a ludicrous salary I wouldn't do more than was needed, let alone build something that would drive shareholder value.