Only DxO can answer that but given that they have not really supported phone cameras in general for, well forever really, it doesn’t seem likely they that they ever will.
All you can do is try suggesting they do support it via this page:
I doubt it. Their long standing policy is they process proper raw files.
Sadly as part of Googles endless quest to destroy the pixel camera capabilities you can no longer get a true “raw” file out of the phone.
The supposed raw is actually a heavily processed DNG with HDR, noise reduction, sharpening and worse, per scene editing already applied.
That means there is no standard to work off - every file is different with corrections already baked in. This is now the same on all Pixels as of the last few years.
Google went all-in on “computational” (aka ai slop) a while ago and took away user control.
Ive got a P9P too and the colour casts and other issues on the raw files are pretty unusable. Cant even generate a proper dng colour profile in LR to use. Better off using a JPG and trying to fix the over-saturated looks and occasional ruined shot with denoise smear.