Is there some logic to MediaTek's naming conventions, or all their devices just MTxxxx where x is some incremented/random number? I have a device with a mt6631

Is there some logic to MediaTek's naming conventions, or all their devices just MTxxxx where x is some incremented/random number? I have a device with a mt6631 wifi chip and I'd assume it's unaffected just because it's not mentioned as affected anywhere, but it's hard to tell where it might fit into the lineup.