This is so funny because they don't even do a good job themselves with their own service.
I'm a Google phone user on Google Fi, and make heavy use of the web app (message.google.com/web) in addition to texting via the phone. Once you get a long conversation history, the phone experience becomes poor - conversations won't load, messages won't send - and the web will often lose sync and need to be re-paired (which may or may not itself work). On top of that, some days messages just will not send quickly, not over wifi or 5g, to the point that it's too hard to converse via text and we just give up.
Google has an alternative configuration for Fi users, btw: you can do all your calls and texts through Fi, have Fi store your messages and voicemails, etc. Except you have to turn off RCS for this, because Fi doesn't support it. So you get the SMS/MMS experience they are complaining about, and on top of that they convert all your audio and video to 3gpp and downscale the heck out of it such that it's nearly worthless.
Who knows what's realistically possible but I wonder if Google is going about this the right way. Call up Tim Cook and say we'd like to give Android users a better messaging experience, how can we work with you to do that. Don't try to embarrass Apple into helping you - Apple very likely does not care - and certainly if you're going to point out where their choices lead to a worse experience for your users, make sure you're not doing the same thing.
Just to counter your anecdote, I've never had a single performance issue on the Android Messages app on my phone or the web interface. I have had friends with iPhones that fail to render images I've sent them, and they send this obnoxious "so and so responded with a thumbs up" (still do, android phones just do the right thing now and show a thumbs up reaction instead of the text). So YMMV. Apple needs to fix their broken messaging app.
I'm a Google phone user on Google Fi, and make heavy use of the web app (message.google.com/web) in addition to texting via the phone. Once you get a long conversation history, the phone experience becomes poor - conversations won't load, messages won't send - and the web will often lose sync and need to be re-paired (which may or may not itself work). On top of that, some days messages just will not send quickly, not over wifi or 5g, to the point that it's too hard to converse via text and we just give up.
Google has an alternative configuration for Fi users, btw: you can do all your calls and texts through Fi, have Fi store your messages and voicemails, etc. Except you have to turn off RCS for this, because Fi doesn't support it. So you get the SMS/MMS experience they are complaining about, and on top of that they convert all your audio and video to 3gpp and downscale the heck out of it such that it's nearly worthless.
Who knows what's realistically possible but I wonder if Google is going about this the right way. Call up Tim Cook and say we'd like to give Android users a better messaging experience, how can we work with you to do that. Don't try to embarrass Apple into helping you - Apple very likely does not care - and certainly if you're going to point out where their choices lead to a worse experience for your users, make sure you're not doing the same thing.