From the screenshot it looks like Shopify marked an order medium risk, this is the Shopify fraud analysis that helps stores determine the potential risk factor of an order.
Reference: https://help.shopify.com/en/manual/orders/fraud-analysis
In tests we’ve done with app users (for our app Order Automator that notifies store staff of medium / high risk orders), we’ve seen 20 - 30% of high risk orders be fraudulent resulting in a chargeback, but for medium risk much lower (some stores had a 0% chargeback rate for medium risk orders).
So I think generally medium risk orders are fine, but it might still be worth contacting the customer to verify. Shopify has some documentation on fraud prevention here: https://help.shopify.com/en/manual/payments/fraud-prevention