Although I understand your point, and certainly have some friends that would feel like they're hacking the gibson connecting to an irc server, is Discord et. al really that much different?
I have whatsapp and conversations and that's it. I only use teams on my professional computer, you will never see me install "work" on my personal smartphone and nobody needs a linkedin app, the website is enough.
I agree about LinkedIn and will probably get rid of it; I mostly installed it as I was going to a conference and wanted the easy option for swapping contact details using camera codes.
Even getting people to use a different messaging app (such as Facebook Messenger) already installed on their phones is difficult.