

Some projects that kind of do that come to mind:
Beeper, which is a hosted Matrix server (probably Synapse) with bridges to other messengers, and a client (probably derived from Element?). But it’s all called Beeper to be more “normal”.
Snikket is a “rebranded” prosody XMPP server, Conversations client for Android and Siskin IM client for iOS. Also, all are Snikket, no scary abbreviations and different app names.

Some years ago, mentioning Linux for daily non-gaming use:
Guy: “Installing Linux is complicated though”
Me: “It wasn’t bad 10 years ago, and now it’s as hard as clicking Next a few times, even faster than Windows”
Guy: “Well duh, you have ten years of experience installing it!”
Difficult to argue with this non-logic.