Minimum quantity set at 5 instead of 1

#1. All Products
You can use this code to Website Tools > Code Injection > Footer

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $('div.product-quantity-input input').attr('min','5');
  $('div.product-quantity-input input').attr('value','5');
});
</script>

Result

#2. Specific Product
You can edit Additional Info

Add a Code Block

Paste the code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $('div.product-quantity-input input').attr('min','5');
  $('div.product-quantity-input input').attr('value','5');
});
</script>

#3. Products belong Specific Tag/Category
First, you need to assign a tag: five quantity for these products

Next, use this code to Code Injection > Footer

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $('.tag-five-quantity div.product-quantity-input input').attr('min','5');
  $('.tag-five-quantity div.product-quantity-input input').attr('value','5');
});
</script>