This post has finally motivated me to register in this forum. I thought I was the only one in Austria, after even the thread about differences in Germany didn't draw anyone out...
I live near Vienna and have done so for quite some time. I haven't lived anywhere else in Austria, so I can't say whether what I see applies everywhere, but the impression that I get is that all of the MMM messages about deliberate lifestyle design apply here just as well as elsewhere. We're not at your level of 60%, ChrisCambria, but here are some ways that I try to integrate MMM ideas into my life here in Austria:
1. Choosing deliberately where we live. This has two elements - (a) limiting our reliance on a car, and (b) financing.
(a) We specifically chose to live within sight of a train station and a bus station in order to keep our reliance on a car to a minimum. Compare the public transport just about anywhere in Austria to a similarly-sized town/city in most other countries, and I think Austria has a really good offer. Plus there are no social stigmas about public transport, at least not where I live. I do all of our usual errands (post office, supermarket, pharmacy, banking, etc.) on the way to or from work, or by foot/bike in our town.
(b) The place where we chose to live is one where the Wohnbaufoerdung (state funding for private housing) is really generous. There are different rules and systems but to keep it simple, Wohnbaufoerderung is essentially a loan from the state that is indexed to inflation or some nominal rate - in some cases, much of it is 1%. This will vary based on your state, but I think that you'll find that there is something on offer just about everywhere. You can get up to about 50% of your total costs covered this way if you do things right.
2. Using the outdoors. This is easy in Austria because the country has a big hiking culture - see Frugalwoods' comments on their website about how frugal hiking is. In winter, you can go in for cross-country skiing.
3. Biking. When I can, I ride my bike to work. That's 20 km each way, and do you want to know how much of that is not on a bike path, a track, or on roads without a dedicated bike path? About 500 metres. Try comparing that with some of the horror stories other forum members have to tell about having to cross multiple-lane roads, and you'll quickly see that Austria is a bike-friendly country. Again - at least where I live. It might be different in other parts of the country.
Do we tell anyone? No, but that's more to do with it being a way of living rather than a race to get out for me at least. How do we deal with others? To be honest, I don't think we do really... we're just plugging along, doing our thing, and I don't think anyone else really cares.
Is US-style FIRE do-able here? Probably not quite. The impression that I get is that FIRE here would involve working "with" or "in" the system a lot more to take advantage of the benefits that all of those tax euros generate. I'm not talking about exploiting the system, but there's no point planning on retirement without needing a state pension given that you are obliged to pay into one from the first day you clock on, for example.