/favicon.ico is the default and it will be loaded if your page does not specify a different path in the metadata but in my experience most clients respect the m

/favicon.ico is the default and it will be loaded if your page does not specify a different path in the metadata but in my experience most clients respect the metadata and won't try to fetch the default path until after the <head> section of the page loads for HTML content. But non-HTML content has no choice but to use the default so it's generally a good idea to make sure the default path resolves.