I've been on both sides of this, having been in a male-predominant industry and then in a female-predominant industry. In the male world, there was plenty of "mansplaining" and in the female world - I was actually really surprised at how female colleagues approached me. There were hilarious moments of "reverse mansplaining" where a group tried telling me all about the industry I had just come from, when none of them had any experience in that field. I remember a moment too where I was offering a business opportunity that would benefit all of them, but they very clearly did not think I was qualified simply by being a male - but would have been totally on board if I brought in a female partner. On the other hand, there were places where they wanted my opinion because there were (to me) weird gender role things at play - something like "we need a big strong man to defend us here, so let's get his opinion."

Men and women approach things in very different ways that even now with 40 years of life experience continue to surprise me. I think some of the bias is not intentional, but rather a lack of awareness, and frankly acknowledgement.