The VAST majority of employees at Bolt would not get life-changing amounts of money at an $11B valuation.
Unfortunately, they'll probably never be able to sell their shares for even a fraction of that amount anyway.
The first 5 engineers would be incredibly lucky if they got 0.1% - who knows how many of them fully vested and still have shares. I'm guessing less than half. There's MAYBE one person who was looking at close to $11M.
Engineers after that would be incredibly lucky to even get 0.01% of the company. That's $1.1M. Again - I'd be surprised if there's even 5 fully vested that still have shares.
And even if they still have the shares, they'll be lucky to sell them at a $2B valuation - let alone $11B. So cut those numbers by 1/5th (or more).
Bolt would've been a SCREAMING success for a startup. Unless you were engineer #1-5 - you'd be better off as an L4 at FAANG.