All the GH6 specs do look damn good but there Lois one BIG caveat. The GH6 still relies on the contrast AF only. A GH6 tester told me that while there is definitely an improvement over the GH5 he still found that this camera autofocus isn’t good enough for sports tracking. He stressed tough, that this is a pre-production version he is testing. So there might be still room for some minor improvement.
This is the full GH6 spec sheet: