I did iOS 17 update on both iPhone and iPad. Iphone settings still show send as SMS and MMS Messaging, etc., options (on), however, iPad now does not have those options. Group chats sent to groups that have non iPhone users do not go thru on both iPad and iPhone. When I got new phone I had issues due to no SIM on phone and SIM on iPad so I tried those fixes (in addition to many more suggested) with no success.