Yes, and it helps those who got into debt some time in the past, and without this debt have a positive cash flow today; for example a graduate making good salary but saddled with old student loans.
But I think (although not 100% sure) most poorer people in debt do not have a positive cash flow even when not counting debt payment. They are getting deeper into debt because they spend more than they get. And inflation will probably push those people deeper into the hole: they are on bare essentials (cannot cut those; and they are getting more expensive), and their jobs are more likely to be cut.
Richer folks by comparison have many options to hedge against inflation, from property sprinkled around the world to commodities, precious metals in cold storage, inflation-resistant stocks, etc. My 2c.
This is not valid for the poor people making $15,000 a year with $600 in their bank account. These people are losing a lot of wealth.
Debt is not that easily accessed by everyone! And when it comes at the cost of inflation as it often (or even almost always!) does, it's even worse.
I assume you're probably in the US and think that making money is as easy as it is for most people there everywhere. No, it is not easy for everyone, and not everyone lives in the US.
The next lot have some wealth in property and pensions. Property especially benefits from inflation as the remaining mortgage reduces as a %age
Now sue, if inflation is high and wages don't increase with inflation that does effect the poorest, but the poorest are screwed anyway.
Median savings account levels based on earnings: