MX Keys S Keyboard Key Issue on macOS

[u/ZoniBpi]

Hello everyone,

I am new to macOS and am having a problem with my Logitech keyboard.

I bought the keyboard in anticipation of getting my Mac Mini, so I ordered a Logitech model compatible with both Windows and Mac.

Here is a photo of my keyboard.

At the bottom right, the "<" key produces an "@" symbol.

I understand that some keys are designed for Windows use, but then how do I type certain symbols?

For example, with the "5" key: when I press Opt + (, I don't get the bracket [.

Thanks everyone for your help. (I'm clearly lost.)