It's good that Google has been working on improving the messaging experience with iPhone users but so far it hasn't worked at all. I was part of the app beta for several months and the option never appeared in the Advanced settings. Maybe this improved messaging doesn't work because I use Google Fi? My roommate has been unable to send or receive any photos after the last couple app updates. Messaging works fine with her SIM if we put it in an iPhone. P.S. The help articles don't fix this.