Why doesn't Google see the favicon (6 months)?

Question

Google

Tell me, please, what is the reason that Google categorically refuses to see my favicon on the site ?
All code responsible for the favicon:

<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
    <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
    <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
    <link rel="manifest" href="/site.webmanifest">
    <link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5e37a7">
    <meta name="msapplication-TileColor" content="#2d89ef">
    <meta name="theme-color" content="#403b3b">

I checked it on the realfavicongenerator.net service - everything is displayed perfectly and there are no complaints.

I also checked how search robots see the favicon icon at the site:
Google - https://www.google.com/s2/favicons?domain=domain_name - Everything is also displayed perfectly here.

But why is Google having problems with this. And the site is displayed without a favicon in the search results?

Answer 1

I have everything displayed

Answer 2

It's most likely spelled wrong.
image/png - and a file of a different type x-icon
But I used to make sites, stupidly placed favicon.ico in the root of the site, in any format (even gif with animation, renamed to ico) - and Google quietly picked it up without problems. And I did not point to this file anywhere in the code.