XF 2.2 how can i get these icons?

Those are Font Awesome icons.

Find the one you want at https://fontawesome.com/ then in your forum go to AdminCP >> Setup >> Public Navigation.

Click on the navigation element you want to add the icon to.

The third option down is

Fontawesome Icon: ______________

Add the name of he icon in that text box, e.g.,fas fa-home. )(Note that the exact format of the icon name may change from FA4 to FA5).
 
Is that true for all navigation items? Have you tried something other than Home?

What version of Xenforo are you running?

Two other options: add this to title:

HTML:
<i class="fa-solid fa-user"></i> Home

You can also do this with CSS in extra.less

 
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