Review from ePHOTOzine incl impressive MTF charts:
https://www.ephotozine.com/article/nikon-nikkor-z-28-75mm-f-2-8-lens-review-35887/performance
From what I have understood, ePhotozine measures at the "edges" and not in the actual corners. This might partly explain why their MTFs are always higher than those reported by other testers.
Personally, I only swear by three sources:
www.Photographylife.com (good technical consistency in their tests, and actual photographers using the lenses)
www.cameralabs.com (no MTFs, but plenty of actual images both at close and faraway distances)
www.lenstip.com (again, rigourous testing for MTF, but minus the actual photographic evaluation: this has led them to severely pan lenses that are actually very usable or good, because they only look at the numbers)
The French website
www.lesnumeriques.com is also very good for MTF graphs, but they don't test many lenses.
If one combines the impressions from these websites "cum grano salis", one can get a reliable impression that doesn't stray much from reality.
On the other hand, I find that ePhotozine is a bit... overenthusiastic and their procedure overrates everything. And DXO Labs is completely meaningless to me (lots of numbers, but again no photographical sensibility).