Favicon for search engines

Please give a quick overview of your product feature request or feedback and note who in your org is affected by this issue [ex. agents, admins, customers, etc.]. (2-3 sentences)

It would be nice to have control over icon, shown at the root level if Help Center, now it is Zendesk icon. Example:

https://jbsyoutrack.zendesk.com/favicon.ico

Icon shown to our customers in search engines (Google, Bing, etc), which are sometimes confused by root level favicon.

Note: now only this icon is controlled by Guide settings

https://jbsyoutrack.zendesk.com/hc/favicon.ico

What problem do you see this solving? (1-2 sentences) 

Incorrect icon in search engine's results.

When was the last time you were affected by this lack of functionality, or specific tool? What happened? How often does this problem occur and how does this impact your business? (3-4 sentences)

Last affected - today. Incorrect icon was shown in search results. Customers are less likely to click this link, because they see unfamiliar icon. Screenshot:

Are you currently using a workaround to solve this problem? (If yes, please explain) (1-2 sentences)

Yes, sometimes requesting reindexing from search engine helps, but it is problematic to do it for every Help Center and for every search engine.

What would be your ideal solution to this problem? How would it work or function? (1-2 sentences)

Custom favicon is shown as a root level favicon

https://support.zendesk.com/hc/en-us/articles/4408828956186-Adding-a-custom-favicon-to-your-Zendesk