The title is misleading because it says Germany is exploring - suggesting there is anything like a cultural shift/push on a society-wide scale to explore. That unfortunately is not the case.
German work culture as a whole is very much still "butts in seats", working for the predefined number of hours per week with a fixed quota each day, and the Stempeluhr [1] is very much alive even in white collar jobs.
If you interpret Germany to mean German government mandate then I can see how it would seem misleading, but if you interpret Germany as the people who live there, then 45 random companies (that the journalist could find, there will be more) is actually pretty good evidence of a society wide exploration.
German work culture as a whole is very much still "butts in seats", working for the predefined number of hours per week with a fixed quota each day, and the Stempeluhr [1] is very much alive even in white collar jobs.
1: https://de.wikipedia.org/wiki/Stempeluhr