All computer PSUs must have that feature. As made obvious by ATX standards. For example, a computer must work just fine when voltage drops so low that incandescent bulbs dim to 40% intensity. Surge protection has been standard inside all appliances long before the PC even existed.
Your concern is a rare transient (maybe once every seven years) that can overwhelm that standard and existing protection. Nothing adjacent to an appliance claims to protect from that type of anomaly.