Lots of use cases for this! I've used https://clearbit.com/blog/logo/ in the past.
Results are somewhat different, e.g. compare https://icon.horse/icon/wikipedia.org to https://logo.clearbit.com/wikipedia.org
Results are somewhat different, e.g. compare https://icon.horse/icon/wikipedia.org to https://logo.clearbit.com/wikipedia.org
For example, some sites have SVG icons, which are usually superior in both file size and in scalability (compared to raster formats), but if using them in a mobile app in React Native, it would require an additional step to integrate SVG images.
perhaps have parameter, e.g., format={png||svg} and serves up png if no svg available