Oh, I'm fine with my setup, I have a couple of external servers that can monitor all my web accessible stuff with kuma and then I've got another local one to monitor my non-web accessible stuff.
Thanks for those tips though, definitely useful to consider other options
I'm more interested in matrix having worked with meta to actually bridge from a matrix home server to WhatsApp. Thanks to the EU's DMA WhatsApp were required to do something.
As for how it will look, further down that same post there is the following:
So sadly it looks as though you may be able to contact people if they've opted in for cross platform messaging, but they'll need to look somewhere else for your messages.
I currently use matrix and have bridges for discord, WhatsApp, RCS, Google messages and possibly a couple of others running so that I can just chat to whoever I want from one place and not care which platform they're using.