KDE is more similar to windows, Gnome is maybe closer to MacOS.
But generally, KDE felt always a bit “super user” to me, and I found the amount of customizability and features more overwhelming than useful. Gnome is simple, clean, and I prefer it for that reason.
They place ads in the search results.
If you disable your ad blocker, the first search result will almost always an Amazon ad. I test searched for “Headphones” and it also shows a row of JBL headphones at the top ala google shopping, which is an ad as well.
Really, they make their money the same way as google, they just don’t track your searches and site visits.
That, but AFAIK they get most of their money for setting google as the default search engine.
For distances >600km, flying is usually 4x-10x faster at a similar price. At least in and around Germany. I assume in the US trains compare way worse, also because the distances are way larger.
Examples: “Normal” example: Stuttgart (Germany) -> Amsterdam (Netherlands) Train: 11h 10min - 241€ Plane: 1h 20min - 225€
Best case scenario for train in Germany at around that distance (because there’s a direct connection): München -> Berlin Train: 3h 54min - 167€ Plane: 1h 5min - 226€