Advice on HN not to go to a startup is because 99% of startups have bullshit equity options these days.
They're not worth the risk and stress because the VCs and founders are keeping potential payouts to themselves but pushing a huge amount of the financial risk and work stress onto their staff.
Unless you're a cofounder or maybe a founding engineer, payout from a reasonable sale of a startup these days -- if it fluked out and actually happened -- ends up being little more than the annual comp at one of these BigCorps.
TLDR, you don't get a job at a FAANG because you're lazy, you get that job because you're looking out for yourself and your family and you'd prefer not to be someone's plaything.
That said I got sick of Google and went and shopped around last year and now I'm working at a smaller, series B funded company now and love it. But I ain't hoping to get rich, just job satisfaction.
When VCs and founders get their shit together on equity agreements, early stage startups will be more attractive again.
EDIT: Also hate to burst your bubble, but on-call rotation is a part of plenty of Google SWE teams, not just SRE. But they do pay a handsome bonus for the time you're on-call.