Even "open" Android doesn't have a third party API for RCS. Google wants to lock everyone into Google Messages. The only exception is Samsung, they got special permission from Google.
Google is not immune to this either, all companies should be treated the same way IMO. Monopoly status should not be a factor when it comes to default apps and such.
Google is not immune to this either, all companies should be treated the same way IMO. Monopoly status should not be a factor when it comes to default apps and such.