It's a fantastic metric to compare aggregate debt to. It isn't the end of the story, which is why I also cited debt payments to disposable income.
American households are not, in aggregate, in a painful or even deteriorating position with respect to their debt. That doesn't mean many households, or even entire regions, e.g. West [1], aren't in pain.
[1] https://usafacts.org/articles/the-state-of-household-debt-in...
The US has free healthcare for the bottom ~25%, including the poor. If you are in the low income working group, you're often largely out of luck. Those are the people suffering the most. They often don't qualify for EBT cards, they don't qualify for free healthcare, they don't qualify for housing subsidies, and so on.
“Free healthcare” in the form of Medicaid is a bit generous of a description for people under 65 and over 18. Few providers take it, and the benefits are really bad in many places.