I do not know if I understand correctly.
If you want the browser to stop automatically filling out forms for customers, just add this parameter to form:
autocomplete="off"Example for the entire form:
<form method="post" action="/" autocomplete="off">
Example for the selected field in form:
<form>
<input type="text" value="" autocomplete="off" />
</form>
By default, Virtuemart does not have this and it is very troublesome for the seller, because customers often fill out forms mindlessly trusting the browser's memory.