My wife runs her own consulting business, I’m taking a break from tech work. This means we buy insurance on the federal marketplace (healthcare.gov).
It is expensive, but not insanely so. Family of four, living in Oregon, non-smoking, our premium is ~$1k/month. Granted it’s a high deductible ($12k), but it protects us from the kind of catastrophic emergency that could wipe out our savings. We are fortunate to not have expensive, ongoing conditions.
Granted, $12k/year is a lot for less affluent families, but government subsidies can bring the premium down considerably if your income is low enough.
And while the coverage is far inferior to my old FAANG luxury health plans, it still works well enough.