Then get them on a different app. Be a leader not a follower

Man, messaging is a nightmare. I use signal with a few of my closest contacts, whatsapp with most other people, sms as a fallback and for work I have to occasionally use Teams and fucking Viber (ugh). At least I managed to liberate myself from the clutches of Slack.

If only there was some standard way to get these apps to talk to each other so everybody could use what they want. Oh wait, there was, it was called XMPP, it worked perfectly and big tech fucking killed it and replaced it with the irritating clusterfuck that is the current status quo.

This is pretty much the only thing stopping me from using another app

Imagine being required to have the same app as your friend to send a message.