I did 10 years at Google all the time feeling the same way as you, because of the golden handcuffs.

And you know what? That's exactly what Google wants.

Keeping you out of the job market and out of competitors' hands is worth every penny to them.

I don't have the answer for you about what's next, because I quit in December and haven't picked up anything new yet. But, yeah. That's my take.