Is there a reason why MDN Docs and Apple’s documentation on configuring web list one of the link elements for apple-touch-icon without the sizes attribute?

im trying to become a web developer, but i’ve come across a roadblock with adding favicons. what i want it to do is to display the favicon, but instead it shows a compass sort of thing since im on a MacBook using safari. here are my steps:

I am trying to add a favicon to my web page. However, the icon does not seem to be displayed properly by my browser. My code looks as follows: