I was initially confused by iOS’ way of handling keyboard layouts. Hence, a quick tip. This is probably something that you already know about. If you do, feel free to close this page and forgive me; ...
Unfortunately, the other layouts are missing the German umlauts (ä, ö, ü) as well as other language/region specific symbols (ß, €, °). The solution is the following keyboard-layout based on the U.S.
You can also change the keyboard language and layout, which will help with things like spellchecking and typing special characters. For instance, if your new laptop is set to US English ...