Golden age of public distressed

So we all know public distressed returns have been sub par over time. But what’s the best way to vet a distressed funds returns vs their peers? I have bbg just don’t know what to type to like find and filter funds to assess performance vs similar strategies? Is there like a public distressed fund index? What would be good irrs over last few years?

We all know the private credit capital solutions guys been eating public distressed lunch, but how to assess this?