https://i.imgur.com/AbsJjCh.jpeg
My concern is that those big beams (blue) end where they meet the plywood (yellow). Which means they are transferring their downward force into the board(s) highlighted in green. That in turn presses down on the vertical studs highlighted in red. These aren’t connected to anything on the bottom. So the weight from the beams gets supported by the screws attaching all these pieces to the plywood wall? Maybe if they’re just for looks and not structural support. Maybe that’s how it’s done in germany.
It popped up for me too on their unlimited plan. I clicked the X and went on with my life.