BTT: I have just spent a few minutes analyzing how much the XF80mm Macro relies on metadata-based lens corrections.
With macros, you have to review digital lens corrections separately for scenes near MFD and for regular distances. That's because unlike normal lenses, macros sometimes aren't optimized for infinity but for macro distances. Duh! Figures.
The 80mm Macro relies on digital corrections for distortion and vignetting (when the lens is used wide open). As usual, CAs are also taken care of with metadata-based corrections, but CAs aren't much of an issue with this lens, anyway.
Here's what I found: The 80mm applies slight digital pincushion distortion correction at both macro and normal distances. It's pretty benign. Fun fact: If you use the XF2x TC WR with the lens, this distortion turns into a slight barrel distortion, which is also digitally corrected.
It's pretty normal for macros to rely on benign digital distortion correction. The XF60mm does it, the Zeiss Touit 50mm does it, the GF120mm does it. And now the XF80mm does it, too.
As for vignetting: There is a good deal of corner shading at f/2.8, which is of course digitally compensated (meaning you will see more noise near the corners if you are shooting noisy scenes with high-ISO). Again, that's not unusual with such a complex lens.
It also affects the T stop (aka transmission). Comparing the XF80mm lens with the XF90mm at f/2.8, I found that the XF80mm is about 0.15 EV darker. Again, this isn't really unexpected.