I would be shocked if it is. While 47 percent increase in sensor size means that Pro Max should get a decent sized 1/1.7 sensor rest of the sensors are very small. You can look at the Huawei P40 review on DXOMark to see the difference in image quality. Especially with ultra-wide camera the difference in indoors is huge.
The good news is that Sony manufactures sensors for Apple and if the new 1/1.7 sensor in Pro Max is anything like the similarly sized sensor in Sony Xperia 1 ii it should be a great improvement from Iphone 11 or 12 pro.
Hopefully Apple will follow the competition with the larger sensors for telephoto and ultrawide next year.
Please don't use that piece of crap dxo mark as some kind of proof of camera quality. It's a site that gets paid off by Chinese companies for high scores
The fact you don't seethe pixel at the top of those rankings says everything you need to know about that site. That site is not an indicator of the best cameras.
Bigger sensors plus apples software should provide high results