Bad idea. Matrix is incredibly costly to run by design. The eventual consistency model replicates everything to all servers which is wasteful, slow, & isn’t going to scale. Many medium-sized servers have shut down for storage & CPU+RAM costs—which causes refugees to seek more centralized nodes. Hell, we saw it a couple weeks ago Matrix begging for money since they can’t even afford to run their own servers anymore. You should put your money into a protocol that doesn’t treat chat like a blockchain & is efficient enough to reasonably self-host.

Doesn’t have a cup holder either! Why does ever alternative need to have every feature or it can’t be called an alternative? Does your VoIP app need the ability to send videos? Can you not use something else in tandem to do the more social side? Sometimes it’s better to focus on one thing & do it well—especially under-resourced like free software often is. You could argue just as easily these other features as bloat if you don’t want or use them.