Question about Logitech G Per ISO

A lot of the keys remain the same. Y and Z are swapped and all special characters are in a different place. You will not find characters like ä, ö or ü on the keyboard.
You can still use the keyboard with the DE-CH layout if you know where each special character is. For programming, the US layout is almost more convenient.

I use the keyboard in such a way that I have two layouts stored in Windows: The US and the DE layout.
I can then switch between the layouts with ALT + SHIFT. I need to do this because otherwise the <>\ characters are not accessible because this key (which is usually placed at the bottom left of the Y) is not available on the layout.

So if you feel confident that you know the DE layout almost by heart, it's no problem.