The German E1 keyboard layout is an extension to the German basic layout containing a complete set of letters for all European languages. As I communicate in 5 European languages myself, the E1 keyboard layout is the only layout I found so far, in which I can access all the letters I need for my languages. My verdict after having tested the layout for some months now: this is the keyboard for Latin based languages!
On the other hand, a national keyboard layout is also expression of the writing culture of a country. In this regard it is particularly disappointing that this honorable new norm ships gender ideology.