Keep the first few letters on your keyboard (cell phone, laptop, computer, etc.).
But on my old laptop qwerty
I use the ISO DE QWERTZ layout on a 100% and a 96% keyboard, but also have a 65% ANSI QWERTY keyboard for contact with English-speaking friends. On the mobile phone or tablet, I also switch between QWERTZ and QWERTY accordingly.
QWERTZ when I write in German
QWERTY when I write in English.