As it shouldn't. Apple should be supporting RCS as the GSMA standard, not RCS as what Google forced its way upon carriers to become the canonical sole source host via Jibe Cloud.
Or was it because carriers couldn’t get their shit together? [1]
[1] https://arstechnica.com/gadgets/2021/04/verizon-att-and-t-mo...
Apple and Google are equally guilty of forcing their way upon carriers. Indeed, Apple has probably done more of this (visual voicemail, etc.).
(This is orthogonal to the concept of whether the carriers needed or should have needed forcing).