Jan van Hellemond 
According to various articles you need between 1 and 74 files to "do favicon right". Here's an article that advocates a very manageable 6:
https://evilmartians.com/chronicles/how-to-favicon-in-2021-six-files-that-fit-most-needs
#favicon #favicon.ico #favicon.svg #appletouchicon #androidicon #appleicon #appleiconprecomposed #manifest #webmanifest #msicon #browserconfig #16 #32 #96 #70 #144 #150 #310
