The monopoly position helped for sure but I think it’s glossed over that at one point Internet Explorer was simply the best web browser on the market. It’s was only after years of mismanagement by Microsoft that it gained the reputation it has now. But there was a point in the late 90s early 2000s where Netscape was a super buggy mess and Internet Explorer was the best browser on the market.
That was true for Chrome as well, when that first hit the market it was a light and amazing browser. There were a lot of technology savvy early adopters for Chrome.
People treat it like a mistake but not be able to use the mouse while it’s plugged in is the entire point of the design. Right or wrong the Apple designers thought a cord drag was a bad experience and designed to prevent it.
They probably looked at their target audience and realized there was a certain percentage of folks that would just leave the mouse on the cord 24/7 and wanted to prevent that.