Just sat it today. There were indeed four options per MCQ.
The MCQ felt easier to me than the official practice tests on the website (I didn't do Arbitio or Ultimate LNAT, so I can't compare there). It felt like the readings were easier to understand and the answers were less ambiguous? So I felt more confident and, despite my pacing being similar to in the practices, I had more time to go back and review. That said, you never know till you get your score back - maybe I felt confident but had lots wrong!
On the essay, I only got three options (my practice tests gave me five). They were presented in a bit of a weird way, as if they're three separate questions - you have to click "next" and "previous" between the essays to see which question you want to answer (IDK if that's how the official website is, it doesn't work for me so I just did it off the PDFs). The type of questions, though, were pretty comparable to the official practice questions - some more controversial ones, some less so, all vaguely societal / political. Note - I only had 40 minutes for the essay. I had it in my head that we got 45. Not sure where I got that from but anyway - if you were also expecting 45 - it's actually 40 minutes.