I am not sure how Apple Messages works now if you start a group text with iPhones and Android phones. I'm guessing it forces everyone to MMS correct? I am sure if you do the same with RCS it'll force everyone to RCS in a mixed group situation, but that would be a huge improvement and make mixed groups behave a lot more like iMessage only groups.Used to have an Android and yes it’s horrific. Without RCS every tag shows up as separate text e.g. “Johnny liked a photo” instead of a thumbs up showing up next to the message. Photos and video are low quality. And everything is insecure clear text for the *whole group.*
For folks who use WhatsApp etc there will be no change so I dont understand the complaint. Personally something like 90% of my friends and family mainly use built in messaging and 80% use that exclusively. This varies by group but I know almost no one who uses WhatsApp and none who use telegram. And if they do they all like something different so fall back to built in messaging anyway. I do know outside the US third party apps are far more popular (WhatsApp in Europe, WeChat in China, etc) so this will be less important but in the US it’s huge in my opinion unless you only communicate with iPhone users.
I have an Android phone and have a few small groups that include iPhones and in Google Messages it just shows everything as MMS. It used to be a real pain until Google actually made reactions work properly by cheating the antiquated protocol so they show up as reactions and not text. Still image and video sharing in those group texts are terrible and limited.