The long fight to make Apple's iMessage compatible with all devices has raged with little to show for it. But Google (de facto leader of the charge) and other mobile operators are now leveraging the European Union's Digital Market Act (DMA), according to the Financial Times. The law, which goes into effect in 2024, requires that "gatekeepers" not favor their own systems or limit third parties from interoperating within them. Gatekeepers are any company that meets specific financial and usage qualifications, including Google's parent company Alphabet, Apple, Samsung and others.
I meant their closed network for it, not the standard.
Just thought it was worth clarifying since a lot of people treat RCS and Google Messages like the same thing when one is a Google product (Google Messages) and the other is an open standard (RCS)
Google Messages is built on RCS but if Apple wanted interoperability they would only need to support the open standard (RCS) not use any of Google's code or require Google's permission.