I had the same experience reading neuromancer in the last year. I felt like I got the vibe of what was going on, but struggled to understand the details and figure out what was actually happening in the story.

I've read it probably four times over the decades, most recently this year. I think I more or less have a handle on the story now, but after the first read I remember having been sort of confused.

I think ambiguity is somewhat intended. It also is continued in the rest of the trilogy. Some things are clearly left for the reader to guess or to interpret. It does make it a not very easy read.