I live in the Netherlands, we still call it mountain biking because of the bike but yeah... [0]. Mostly it gets technical on single tracks. Not nearly as dangerous as in real mountains I presume. This is typical: [1]
I imagine that would be a little better. Last time I went mountain biking was in Sedona, AZ - extremely stressful. You're biking up narrow mountain passes, and if you fall, decent chance you fall directly onto a cactus. I'm a clumsy guy, and I prefer for the consequences for my clumsiness to be like spillage, not impalement.
[0] https://dutchreview.com/culture/history/netherlands-flat/
[1]: https://www.youtube.com/watch?v=i0_MNbdrHEA