Hi everyone,
The new 3.2 and 4.2 have a dedicated button for calling the Google Assistant app. AFAIK it cannot be remapped, Google forbid this, however, I wonder if it can be made to call another app by changing the default "assistant" app. This can already be done in Android 8.1, I don't know if it's possible in Android 9. Any app which say it is an "assistant" can be made to be default and then called by long-pressing the home button e.g. Firefox!
So, the question is, does this work for the dedicated assistant button?
Let me know when you get your 3.2 or 4.2!
Cheers

Comments
It should be possible, but looks like this system setting not working at least on nokia 7.2 - other assistant apps can not be selected. Looks like a bug in nokia's software layer.