The one featured in the picture seems like a "Bernstein Waldschabe". Just a harmless little friend that gets trapped inside sometimes. No killing (and no panic) required
A Deutsche Schabe has black stripes on its head
I wouldn't consider those as stripes, there are many pictures showing a comparison, I'd think those slightly darker areas are shadows.
The stripes that mark a cockroach are really dark and distinctive, way more 'stripey' - maybe look for a photo from directly above to compare it with yours.
The one on your picture looks harmless to me. They like to eat leaves and will die of hunger inside of the house