In the US they are more often built for the shorter term. This comes down to building materials and other (from a European POV) questionable decisions that save money or make them easier to produce or just don't seem as important with the short term in mind.
This doesn't hold true universally of course. Some people in the US place value in building things to last and some Europeans are starting to see houses as something they will replace when the kids move out or whatever, but it seems to be reflective of a general cultural difference.
Also, there's just a lot more space in the US and mass-produced suburbian housing is a thing.
There are lots of different style home and each part of the US has styles that are unique. My personal favorite American style is the brownstone https://en.wikipedia.org/wiki/Brownstone
Check out this https://www.thisoldhouse.com/ideas/american-house-styles
BTB, I am a immigrant and i like these Mcmansions compared to the cramped houses i grew-up in india. Also i think US has one of the cheapest real estate in the world relative to income.
https://www.census.gov/hhes/www/housing/census/historic/unit...
They aren't all huge and architecturally peculiar though.
On the country side there are still a lot of fully detached houses but they're either mostly "old" (i.e. built or fully renovated after the war) or built to a different standard (Germans generally consider drywall a cheap substitute). But of course that is also changing.
Also, building your own house is not as affordable as it seems to be in the US. Germans have a stronger aversion to taking out loans and banks often want a significant down payment.
From what I've seen few home owners actually park their cars in garages though. Recently carports (basically sunroofs) have become pretty popular but most people seem to park their cars in the driveway as far as I can tell. We just clean them more often, I guess.