I wouldn't even say it was that clumsy from Davies, he's not doing something deliberate with his left leg, it's behind his torso from the running motion. It's two players going after a loose ball and one of them decided he'd like a penalty and threw himself in front of the other. Hofmann's left leg appeared ready for take-off, before there's even a contact.
It's pretty scandalous to send this into review in the first place and an even bigger joke that Schlager tried to show off, by conducting a review of about three seconds. These guys should spend the next match days with Schalke and Hertha, but this stuff is as old as VAR and no one seems interested in quality control or enforcing a clear intervention threshold. But who can be surprised by this, considering they made Zwayer their poster boy, but got rid of Gräfe.
And to round things off they followed a generous line when Tapsoba tried to fix his own mistake by wrestling with Musiala, but 10 minutes later we get this manufactured penalty for the other side.