Tgm is more a database, rather than just a messenger. It's a centralised huge server-side searchable abyss. It is both its good and bad side. On the good side: if you're using it for public and non-sensitive things like running tech support, it's easily the best thing. Once you type a word and search - you'll get everything from the very distant past. It's very good for dev-ops activity. On the other hand - forget privacy: a phone number ID, server-decrypted chats, e2e hidden behind two menus and not available on some platforms (like Linux).