Re: what about Apple?
You can use whatever you damn well please on Google products.
You can, as a user, yes.
The EU's complaint is that Google don't allow OEMs to exercise the same freedom by installing alternative apps instead of Google's own.
I, personally, don't mind Google insisting that all their own apps should be present on a new device -- as long as I can delete or disable the ones I don't want to use (which I can't, in some cases) -- but that's not the issue, either.
The issue that sticks in the craw is that Google apparently don't allow an OEM to produce two Android devices, one of which is fully Googled-up while the other is not. If they're different devices they should be allowed to use different licensing schemes.