Does the Polarfis take up the OBD2 port?
If not, you can get both
I looked into the Polarfis and I don't think I monitor enough things to actually need one, but it sure looks awesome.
Accessport can display 1, 3, 5 and 6 items I think. The entire list of options available to monitor is linked below.
COBB has a great knowledgebase with almost any info you'd need on it somewhere if you search right.
They have a list here of the monitors available and how they get the values:
https://cobbtuning.atlassian.net/wiki/spaces/PRS/pages/98799234/Volkswagen+Monitor+List+-+Mk6+GTI
For instance I like to monitor Oil temp, so I assumed Modeled temp is calculated vs the Oil Temp (Motor) that appears to be reading right from a sensor
Sounds like your numbers are super high, you must live in some serious sun & heat.
What sort of intake do you have? your IATs are about what mine are on a 90* day but your oil is warmer than mine has ever gotten. Your coolant temps are mostly in line with what I see though.