I have tried to process several photos in DNG format from the iPhone 13Pro Max and to my surprise and deception, DXO Photolab can’t process them 
Also the latest supported iPhone optics are for the XS max!
I CAN PROCESS THEM IN LIGHTROOM! And it makes a real difference in quality a dog file from a iPhone compared with a jpg file, so if LR can do it WHY can’t you??? Maybe it would be simpler to tell us we will not support that, then at least I will know when to buy the next version.
I realize DxO hasn’t made it obvious - but the place where you can see what’s supported and when (and where you can submit requests) is here: Supported Cameras - DxO