DeepPRIME XD introduces purple overlay/chromatic aberration

Are you sure each of those applications do use Apple’s neural engine on Apple Silicon to process their images?

I assure you DxO is not deliberately sabotaging their own processing engine. There are issues with DxO for which they deserve a thorough chastising, but those issues mostly concern not allowing us to use features or the software at all. Examples:

Sadly with these issues, there’s no opportunity for the PhotoLab photographer to work around DxO’s block. In this case, the colour cast with DeepPrime XD and Ventura, the photographer has control. S/he can just remedy his or her own situation with the workarounds above.