At a FAANG? Why not? If the company is public you can immediately sell it for cash upon vesting, and I pretty much always do.
And even if they don't, there are lots of ways to find yourself in a toxic workplace. If you're depending on that vesting schedule, your life can suck as you're trying to wait out an arbitrary deadline.
If you treat vesting as a nice optional bonus that you don't plan on, neither situation will feel bad to you.
I had the wonderful experience of being hired at Google many years ago, and pulled into an SRE role. I was in the roughly half that they do that with that don't work out. And I didn't work out for exactly the reason that I initially expressed doubts about. (I don't task switch that fast - not a problem in a SWE but a major problem for an SRE.) I was let go 5 days before my 1 year cliff.
That is one of the reasons why I, personally, discount equity compensation.
Google and Facebook don't anymore. You start vesting right away.