If you can afford less (lesser treatment, drugs, procedures, quality of doctors and hospitals you can pay for), then your chances of survival also got WAY worse.

Doesn't matter if the 1% has now access to better versions.

I don't have concrete metrics/sources to give right now, but my general perception from reading the news is that there's been staffing issues pushing healthcare systems in the US towards increasing workloads in individual providers, leading to less time/attention given to individual patients, lower availability of appointment slots, and offloading of patients onto alternative app-based telehealth platforms, which have been trending up alongside aquisition/consolidation of independent private practices.

You mean in places where every random without a degree can perform eye surgery, and doesn't matter if one in 5 customers go blind from it? Yes, that sure drops the prices.

But they're way cheaper than the US in heavily and properly regulated health markets too.

You'll forgive me if perhaps I want something as important as eye surgery to be well regulated. Have a look at health outcomes for literally any industry where regulation is lax, like Brazilian plastic surgery. It's not great.