And yet Apple still has a massive moat around Siri because there is no official way (as far as I know) to replace Siri by another assistant when pressing the si

And yet Apple still has a massive moat around Siri because there is no official way (as far as I know) to replace Siri by another assistant when pressing the side button or saying "Hey..." I believe if you want to use Google Assistant your best bet is to say something like "Hey Siri, use Google Assistant." (honestly haven't even tried because of how ridiculous that is). So they're clearly still in prime position to make their product better, even if they're behind right now. That's unless they get an antitrust lawsuit for unfair monopoly, which they probably should get considering this seems to me similar to what Windows was doing forcing IE as the default browser back in the days. Just like people should be able to choose their default browser, they should be able to choose their default voice assistant.