It's not the color, but the fact that the person with green bubbles will not see what you see if you use comment reactions or replies -- for example if you put a heart reaction on a comment, the android user will not see a heart on the message, and instead will get a separate text that says "Jimmy loved a message" and they can't tell which message you're talking about. So when you interact with green bubble people in iMessage, you have to modify your behavior and find alternate ways to express those reactions, which is annoying.
> the android user will not see a heart on the message, and instead will get a separate text that says "Jimmy loved a message" and they can't tell which message you're talking about
The substitute message for the reaction (known as a "Tapback" in iMessage) does let the recipient tell which message is being reacted to, though it's not very user-friendly. The format is something like:
The Google Messages app,[1] which is preloaded on many Android phones, now automatically interprets substitute messages for iMessage Tapbacks and displays them as reactions, the same way iMessage users would see them.[2] Hopefully, this feature makes its way to open source texting apps soon.
Thanks, I could have sworn that before I switched back to iOS, I was getting a bunch of "<X> loved a message" from iOS users. Maybe it improved in newer iterations.
What I find annoying is that Apple is doing exclusive proprietary stuff in their default chat app. At that point you might as well just use Instagram or whatever else. Actually I find emojis annoying to begin with, on any platform, so there's that.
You can disable iMessage in the settings. Heck, since you seem to yearn for the days of text only, you can also turn off MMS and disable messages over 120 characters.