Ok people, this is what happens…I copied, renamed, added lines - similar to the above one you give as example…and nothing was showing…
I tested on ultimate version of Chrome, FF and Opera…and nothing.
Googled again to Stackoverflow for similar “undisplaying issue” and found this sugestion:
myIcon.ico
<link rel=“shortcut icon” href=“myIcon.ico” type=“image/x-icon” />
removed all the lines like :
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png" />
placed instead a single line as up above - upload again an *.ico file and rename it to : myIcon.ico file…
… BAM the Favicon - finally - displays at 1rst trial 
worked fine on all browser Chrome, FF, Opera, Brave…without clearing cache…
Thanks to everyone for helping…