Google’s specific guidelines for search result icons (favicons) state that the image should be a multiple of 48px square . Webflow has a old interface that does not allow you to upload a larger image as the favicon in site settings (32x32). The core product team needs to FIX THIS.
Google’s crawler is designed to look for one that is at least 48x48 or a multiple of, if exists. If you are on a paid plan you can just upload the asset and then reference it in custom code head area. Does not matter to Google’s crawler if there is more than one.
This is such low hanging fruit, hard to believe it has not been addressed yet, but here we are.