Fast moving culture of same aged folks: you’ll learn a ton. Perhaps meet your love :) Plus discounted stock if you join now. Make L3->L5 in 4-5 years.
Then goto G (with 4-5 years of experience you almost guaranteed get L4, even if you were L5 at FB, but with nearly same L5 comp as you had) and work hard to learn even more until you reach L6 and stay there for a while: enjoy the great wlb.
Then either rest&vest until retirement, or start your own company/join early startup as one of the first employees. Or become a manager and work 20h per week at most.