This article completely forgets to mention one of the biggest changes iOS 17 brings for the wild west (US): cross platform group chats with iMessage patchwork functionality:
	
	
		
			
				
			
			
				
				Say goodbye to crippled group texts because of that one friend
				
					
						
							 
						
					
					www.xda-developers.com
				
 
			 
		 
	 
It‘s nowhere near the advantages RCS support would bring, but it‘ll probably greatly increase QoL for mms group chats on iOS.
tldr, cross-platform group chats have these improvements on Apple devices now:
- can edit messages like in iMessage chats
- can reply in threads
- can send high quality media to iMessage participants
Android folks still get the shaft (low quality media etc.) though without RCS.