The reason I state that it does is because at least Chrome (and its derivatives, which make up 70% of the browser market) and Firefox rely on Google Safe Browsi

The reason I state that it does is because at least Chrome (and its derivatives, which make up 70% of the browser market) and Firefox rely on Google Safe Browsing to flag downloads, and Google controls 92.42% of US search users. Having one's website and/or downloads flagged as harmful, and potentially being deindexed for hosting malware, is not something any software developer can ignore. If Bing and Edge flagged my downloads, I would honestly not care as they control 2% of the market. The Windows "this file was downloaded from the internet" warning is something that, regrettably, is so common that users already ignore it, and it happens even for many commercial software programs. Although I do consider that an unfortunate hurdle for free software developers as well, the harm is substantially smaller. As such, I respectfully disagree.