While that's also true, Amazon basics oil basically isn't approved by most manufacturers and has a minimum of approvals.
Manufacturers don't approve oil, they require a spec for an oil to meet.
Amazon Euro 5w-40 is an API SN, ACEA A3/B4 rated oil. If your vehicle needs these specs, then it is "approved" to use in that vehicle.
And in the case of this user, it does not meet the specs of his 2013 Malibu with the 2.5. It should be a 0w-20 or 5w-20 dexos1 oil.