I did think this was a complete waste of time when I first saw this camera, especially with no LCD or VF.
After watching the video produced by ExtraShot it has some interesting features.
I have to put my cards on the table and tell you that I deliberately sold my GH5S to upgrade to a Panasonic X2000 because the DSLR or mirrorless cameras are not made with fast moving sport in mind.
What specifically about the Gh5’s put you off filming sports?
HDW : Apart from the fact of not having a servo zoom, its a very cumbersome camera for filming football.