I answer himself.
I’ve used a javascript on header page of my theme.
<script type="text/javascript">
function goToAnchor() {
var redirecthome = "https://www.yoururl.it/#home";
var redirectall = "https://www.yoururl.it/#all";
if (window.location.href !== redirecthome){
location.href = "#home";
}
}
</script>
where “#home” is the slug of one category called “home” then in home page appears category home only.
I call the function this:
if (is_page(3394)){
?><script>goToAnchor();</script><?php
}
where 3394 is the ID of my home page.