Are good startups worth considering vs FANG?

I'm not talking about startups that are going to ipo next year but startups that probably have 3-5 more years before ipo. Probably companies like affirm, gusto, rubrik, etc. Are those generally worth it if you have a g/Fb offer? I'm a new grad and I feel that fb/g is a better choice but did people who join dropbox or whatever company just ipoed recently make more than going to g/fb? Have interviews lined up for these startups but not sure if I really want to join if I got the offer. Lots of uncertainties, unsure about career path and refreshers whereas fb/g is very safe.