You forgot the Creative Cloud, iOS (autoupdates on by default), and the Play Store.
Those are RCE vulnerabilities, as well. Platform vendors love being able to execute whatever they like on the advertising consumption devices that don't belong to them.
Just because it feels like a different thing because it's the vendor (only in theory - TAO would like to have a word with you) doesn't make it any less a vulnerability, or any less an RCE by the strict definition. Installing the client is equivalent to installing a RAT onto your machine: it can be remotely controlled to execute any code or tools the other end wants.