I found after updating that an additional field appeared in my search area on the customer side.
Global search for:
and you’ll find it in your skins/[your_customer_skin]/customer/common_templates/search.tpl
in the list of hidden inputs at the top, you may need to change the last one from:
<input type="match" name="match" value="any" /><br /> ```<br /> <br /> to:<br /> <br /> ```php <input type="hidden" name="match" value="any" /><br /> ```<br /> <br /> Without it, searches of any kind (quick or advanced) will either show all products or zero products.