Favicon as a component of brand identity

It seems to me that in modern brand consulting, such an element of corporate identity as a favicon remains highly undervalued!
It seems that the picture of 16x16 pixels plays an increasing role as an element of corporate style.

An example of attentive attitude to favicon, as we know, was recently demonstrated by Google:


It was necessary to choose from a variety of options:

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via AD28.ru

For those who believe that the discussion of a favicon in the context of branding is nonsense, here are some links
which I found in google for 3 minutes. They can add a little to my topic and be a good extracurricular reading for those who want to feel the topic.
- The favicon - your 256 pixel brand identity
- Highlight Your Brand with a Favicon
- How Can A Favicon Help Brand My Business?
- Should a favicon be part of your online identity?
- Everything You Ever Wanted to Know about Favicons