Not every place in EU has tax-funded universal healthcare. It's the minority actually. Most countries require you to pay health insurance - and that's certainly not cheap if you're a software engineer as it's based on your income - e.g. 13.5% of my pre-tax (25%) income where I live; that makes it more expensive (absolutely - without income adjustment) than the most expensive premium US health insurance plan for me, without any of the perks. And where is universal healthcare there are also enormous taxes (>50%).

Real estate is much more expensive in major European cities compared to US major cities (income-adjusted), and is taxed a lot on top of income taxes. And rural real estate is much cheaper in the US both absolutely and income-adjusted.

Vehicles and fuel are more expensive here too + again major taxes. Traveling by public transport is reality only in major German and French metropolitan areas, you need a car everywhere else as soon as you need to cross the city border at least semi-regularly.

And yet not even coronavirus tests are free here, as opposed to many places in the US.