I am an iPhone user among a school of half-and-half iPhone and Android users. None of the iPhone users I've met care what bubbles you blow and while I have some friends that do prefer iMessage (when possible) we have all accepted that it's not cross-platform and a lot of people just use alternatives.
The bubble obsession is just a lie that tech news uses to sensationalize RCS marketing. While the point of cross-platform still stands, nobody cares about bubbles. At most we just talk about how sending SMS costs extra money than data one already has for some people.
Just using endeavour's bundled yay, you can install most packages including deb ones that users have written a "how to install" for. https://aur.chaotic.cx/ would also be nice.