Wanted: a single inbox for all non-email messages (SMS/MSS, WhatsApp, Signal, XMPP, etc) that retains the encryption on the protocols that are encrypted, but basically just lets me send and receive to all the fucking messaging apps from a single app/inbox/outbox on my phone.
I realize this is probably impossible and the only reason unified inboxes for multiple email accounts are possible is because all email uses the same standard (right?).
Oh! Apparently there are (or were?) a few apps that actually did this. None of them seem to be available in the Play Store or on F-Droid, but APK Mirror has at least one. Gonna test it out and see if it actually works with the latest version of Android. Apparently it's still in active development/maintenance.
OK, so scratch Snowball off the list. It doesn't work on Android 10.
Disa is also no longer worthwhile. It functions, but only supports Facebook messenger, Telegram and SMS. WhatsApp has been depreciated due to API changes and no other services are available. The hunt, possible futile, continues...
@ink_slinger seems like we need a pidgin / libpurple client that runs on android.
@adasauce One of my first thoughts was: can Pidgin run on Android?