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One UI Beta Team
RCS is still a mess after so many years. Still not fully adopted and working correctly across all android devices. The sad part is that RCS is still dependent on carriers since google allows them to manage the rcs servers. I'm surprised that Google would waste so much time pushing RCS which is still sms based... instead of thinking ahead and pushing an official messaging (instant message svc not dependent on phone number sms and free from carrier bs) service for all android devices instead.
TBH GSM had the opportunity to have carriers and OEMs support RCS by stating to be 5G capable RCS support is required.