

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.












IIRC app stores downrank apps that are not regularly updated too, hence the vague “bug-fixes and improvements” updates in many apps. But seriously, how much could a developer update in a calculator, habit/medicine tracker, sky map, or any other app that is a complete feature?