One of the interesting features about Matrix is that it supports some degree of interoperability. The Beeper phone app, for all the fuss about its ill-fated attempts to bridge to iMessage, can connect to Discord for basic no-frills text chat.
I refuse to install Discord on my phone but use Beeper for DMs and group texting.
I am a big fan of Matrix and glad to see it getting some attention in this post. But it is definitely a bit rougher around the edges and esoteric compared to Discord. For more technically-inclined people, it’s fine. But it’s a bit much for some people.
I’m no fan of Apple (and don’t want to divert discussion here), but part of their winning formula is ease of use.
Will using the browser version with the usual array of ad-blocks help?