I use MX Keys on MacOS mostly. I thought that the fn-Key will be as on my Apple keyboard however it fails to do what it needs to. The key works physically because I can toggle between F-keys and the functino keys. Also, I thought that this key can be remapped, however this option is not presented in the Logi Options.
I am using the swiss german layout.

I wanted to have an insert button like in Windows for mac as well. However, this button is just useless on Mac. Its a pity.

I feel like returning the product, to be honest.

Regards
Peter