[ASnep]

The empty space to the left of the clock bugs me a little. That being duplicated with the secondary added time clock means that in stoppage time the scoreboard goes halfway across the screen. It's not 16:9 safe either I believe, so that exasperates that issue.

That's on ZDF. Other broadcasters include the tournament logo to the left of the score board. Here is the one from TF1 in France:
i.ibb.co 

Isn't UHD 8 times the amount of raw data as HD, not 4? It's 4 times the resolution, but also progressive rather than interlaced, which doubles it.

Though I think Germany do use 1080p50 for their main channels, so that does remove the last part if it's being produced that way.

UHD is double the width and hight as 1080p ... so it's 4 times the data 

Germany uses 1080p50 on terrestrial. Sat and cable are still 720p ... which is how most people in Germany will watch it, as the marketshare of terrestrial TV is at a negligible 3.5%.

Also even you're watching in Germany on terrestrial it isn't guaranteed to actually be 1080p. The playout of ZDF still runs in 720p, so all you get is an upscale. ARD and RTL at least seem to run in 1080, but weither its native 1080p or 1080i converted to 1080p is not known.