I went through an Austrian School binge during the financial crisis. The Austrian school had some very prescient and relevant observations on price signalling and why orthodox communism would inevitably fail because of it. Basically when you mess with prices, things get out of whack because they're a very basic and powerful signal of all the inputs into any product or service.

But the school is also a spectrum. If you watch interviews with Hayek, he's quite pragmatic in some ways; he concedes that some social programs can be desirable, particularly around heathcare, but pushes that such programs should be as market oriented as possible. He's also fine with taxes on negative externalities, like pollution.

Von Mises, who many consider the father of the movement, was extremely rigid and uncompromising in his classical economics view and how government should be minimal (though being jewish and watching the nazis operate greatly influence this viewpoint). Add to the fact that much of the modern torch has been carried by American advocates who were heavily influenced by Murray Rothbard (who was a student of Mises and can best be described as anarcho-capitalist through and through) and the whole movement has took a nosedive off the crazy tree.

IMO the movement is now mostly made up of people who at best can no longer see the forest for the trees and at worst are bigoted or terrible people who can't stand that "the government" won't let them do terrible things. I've literally seen videos of Rothbard disciples advocate for debtors bondage/slavery, child labour, and even worse things.