I speak from my experience as a contractor in the telco domain, whereby there I would work in some industries I had no clue about. For example, I once worked in health and had no idea about the amount of regulations they had to adhere to.

However I realised they had accepted me because I was an expert in telco, not health. Similarly, I suspect you were hired because of technical skills and not because of your lack of experience in their domain.

As such, I learned the skill of saying "Can you just explain xyz, please?" in a direct and confident way. Context matters, of course. I wouldn't interrupt a meeting. But there's a time and a place.

Hope that gives you something to think about.